* Fixed the two broken references to SweetAlert

The urls I used where the best ones I managed to find. (I'm sure there are better ones somewhere, but it was surprisingly difficult finding them.)

* Changed the urls again

* customTime read-only (i.e. editable = false) patch.

* updated docs for read-only customTime patch

* timeline: add 'quarter' support

* add unit test

* update docs

* misc

* 'quarters' scale hidden by default

* initial trial

* Add onInitialDrawComplete

* Add docs

* Add to eventListeners examples

* Keeping things DRY

* Remove callback insertion

* Remove call

* Add onTimeout

* Prepare bailing in stack

* Initial bail function

* Better written bail function

* Clean up

* Fix and cleanup examples

* Add onTimeout docs

* Remove core.js changes

* Readd newline in corejs

* Fix example title

* Fix review comments

* Move majorLables to 1st week in the month, for 'week' scale

* next() always adds 1 week to current date
* show 1st week in the month as majorLabel

* Add 'week' to auto-scale

* Update week scale example

* Revert "Move majorLables to 1st week in the month, for 'week' scale"

This reverts commit 52df3c3ac5.

* Correct value of week's minimumStep

* initial trial

* Add onInitialDrawComplete

* Add docs

* Add to eventListeners examples

* Keeping things DRY

* Remove callback insertion

* Remove call

* Add initial loading screen

* Fix real initial draw call

* Remove activateOnInitialDraw method

* Add loading screen option

* Add docs

* Remove onInitialDrawComplete double doc

* Simplify example

* Simplify stressPerformance example

* Remove extra line

* initial trial

* Add onInitialDrawComplete

* Add docs

* Add to eventListeners examples

* Keeping things DRY

* Remove callback insertion

* Remove call

* Fix initial real first draw complete and fix comments from review

* remove all <code><code>

* Make items redraws return queues

* Parallel initial items redraw

* Seperate read and write actions in items

* Parallel all items redraws

* Remove comments

* Fix linting comments

* Fix redraws on actions

* Seperate group read and write

* Add objects that can be dropped to items

* Move example

* Fix group get/set group properties

* Add documentation

* Remove console.log

* return Group.js changes

* Fix review comments

* Fix example

* Update drag&drop.html

* - Added support for vertical scrolling while the timeline is focusing on an element, both for animated and non-animated calls of focus

* - Adjusted item offset calculations to use the item parent
- Turned on animation for the focus in the example
- Updated function documentation

* - Fixing lint issues

* - Added documentation for the new 'frameCallback' parameter of 'setRange'
- Fixed the documentation on 'setRange' for the 'callback' parameter
- Fixed code not meeting style guidelines

* - Updated the example for "setSelection" to be more clear about what the example buttons do. Focus the language to be more consistent with that fact that the demo uses "setSelection"

* - Added support for stacking items within individual subgroups while subgroupStack is on

* - Adjusted location of visibility check to cover subgroup stacking

* - Fixing linting issues

* - Updated subgroup stacking to optionally take a 'subgroupStack' parameter of "true", which enables stacking in all subgroups
- Fixed code to meet style guidelines
- Updated documentation

* Make items redraws return queues

* Parallel initial items redraw

* Seperate read and write actions in items

* Parallel all items redraws

* Remove comments

* Fix linting comments

* Fix redraws on actions

* Add stress example

* Fix example files

* Explain and fix example

* Fix comment issues

* Fix redraw order

* Fix error when option is not defined

* Allow template labels

* Add .travis.yml file

* Add experiment travis code

* Fix react example

* created a checklist for the release process

* unchecked everything

* added make github release

* Fix colliding subgroups when having same end-start times

* Remove npm-debug logs

Awesome work! Thanks again!

* Add 'showTooltips' timeline option

* Only show timeline popup if option showTooltips is true

* Add 'showTooltips' option to timeline docs

* Add tooltips disabled timeline example

* mouseup and mousedown events

* Fix error

* Add Gitter badge (#2179)

* do not generate source-maps in distribution version

* add 'dist' folder for deployment

* added Badges

* added codeclimate badge

* added @Tooa to the support team

* added badges from isitmaintained.com (#2517)

* do not ignore dist and test folders in master

* generated dist files for v4.18.0

* generated dist files for v4.18.1

* Cheap fix for bug #2795

* Update to PR #2826 to use newline format

* changed to v4.18.1-SNAPSHOT

* chore(docs): general improvements (#2652)

* removed NOTICE file

* updated license date range to include 2017

* chore(docs): updated support team members

* chore: updated dependencies and devDependencies (#2649)

* Fixes instanceof Object statements for objects from other windows and iFrames. (#2631)

* Replaces instanceof Object checks with typeof to prevent cross tab issues.

* Adds missing space.

* chore: removed google-analytics from all examples (#2670)

* chore(docs): Add note that PRs should be submitted against the `develop` branch (#2623)

Related to: https://github.com/almende/vis/pull/2618
Related to: https://github.com/almende/vis/pull/2620

* feat(timeline): Change setCustomTimeTitle title parameter to be a string or a function (#2611)

* change setCustomTimeTitle title parameter, Now could be an string or a function
* Fixed indent and spacing

* feat(timeline): refactor tooltip to only use one dom-element (#2662)

* feat(network): Allow for image nodes to have a selected or broken image (#2601)

* feat(tests): run mocha tests in travis ci (#2687)

* Added showX(YZ)Axis options to Graph3d (#2686)

* Added showX(YZ)Axis to Graph3d

* Added show_Axis options to docs and playground example

* Resolved merge conflict

* Added show_Axis options to docs and playground example

* fix(build): use babel version compatible with webpack@1.14 (#2693)

fixes #2685

* feat(docs): use babel preset2015 for custom builds (#2678)

* add link to a mentioned example (#2709)

* chore(lint): added support for eslint (#2695)

* Trivial typo fix in how_to_help doc. (#2714)

* fix(timeline): #2598 Flickering onUpdateTimeTooltip (#2702)

* Fix redraw order
* Fix error when option is not defined
* Allow template labels
* Add .travis.yml file
* Add experiment travis code
* Fix react example
* Add animation to onUpdateTooltip

* fix(timeline): #778 Tooltip does not work with background items in timeline (#2703)

* Fix redraw order
* Fix error when option is not defined
* Allow template labels
* Add .travis.yml file
* Add experiment travis code
* Fix react example
* Make items z-index default to 1

* Add initial tests for Timeline PointItem (#2716)

* fix(timeline): #2679 TypeError: Cannot read property 'hasOwnProperty' of null (#2735)

* Fix redraw order
* Fix error when option is not defined
* Allow template labels
* Add .travis.yml file
* Add experiment travis code
* Fix react example
* Fix bug in item editable

* feat(timeline): #2647 Dynamic rolling mode option (#2705)

* Fix redraw order
* Fix error when option is not defined
* Allow template labels
* Add .travis.yml file
* Add experiment travis code
* Fix react example
* Add toggleRollingMode option
* Update docs with toggleRollingMode option

* fixes timestep next issue (#2732)

* feat(timeline): added new locales for french and espanol (#2723)

* Fix eslint problem on Travis. (#2744)

* fix: Range.js "event" is undeclared (#2749)

* fix(timeline): #2720 Problems with option editable (#2743)

Clean up and centralise edit status for Timeline Items.

* feat(network): Improve the performance of the network layout engine (#2729)

* Improve the performance of the network layout engine

Short-cut the execution of a number of methods in LayoutEngine to make them
handle highly-connected graphs better.

* Demonstrations of layouts of large networks

* Added support to supply an end to bar charts to have them scale (#2760)

* Added support to supply an X2 to bar charts to have them scale

* Fixed graph2d stacking issue.  It no longer takes into account hidden items

* Changed x2 to end per recommendation and added this to the docs

* Initial tests for timeline ItemSet. (#2750)

Somewhat more complicated setup, associated with the need for a real window.

* [Timeline] Modify redraw logic to treat scroll as needing restack. (#2774)

This addresses #1982 and #1417.

It possibly reduces performance, but correctness seems better.

* fix(timeline): #2672 Item events original event (#2704)

* Fix redraw order

* Fix error when option is not defined

* Allow template labels

* Add .travis.yml file

* Add experiment travis code

* Fix react example

* Fix events returned from mouse events

* Fix example

* Rename censor to stringifyObject in example

* [timeline] Update examples to use ISOString format. (#2791)

Resolves #2790

* [timeline] Update serialization example to use ISOString dates. (#2789)

Resolves #2696

* added github templates for issues and pull-requests (#2787)

fixes #2418

* feat(timeline): Add item data as argument to the template function (#2799)

* Fix regression introduced in #2743. (#2796)

* Fix for issue #2536 (#2803)

* Fix for issue #2536

* Adjusted documentation for fix.

* Adjustments due to review

* Grrrrr whitespace

* Fixed Travis issue

* Cheap fix for bug #2795

* Update to PR #2826 to use newline format

* Update to gitignore to reflect changes on remote

* clean dist folder

* Local gitignore update

* Just a first example file for the week scale feature

* Allowing sourcemap creation

* Initial (non-functional) commit to ensure we insert code at the right places (check TODOs)

* Functional, not bug-free version which works with locale aware week numbers.

* Locale-aware implementation and simplified major labels to a full year

* Trying to make the major labels show the correct start date

* Working implementation of week numbers using localization.

* removing development leftovers

* Updated package.json

* Reintagrate package.json from accidental deletion

* Updates for package.json

* Fixing package.json

* Integrate the week numbers feature in the documentation.

* Reverting local changes to .gitignore

* Reverting local changes

* Extending examples to cover the case when 1st day of week and 1st day of month align; Fixing display bug so that week numbers are not repeated in minorLabels

* Putting the examples into a loop

* Fix redraw order

* Fix error when option is not defined

* Allow template labels

* Add .travis.yml file

* Add experiment travis code

* Fix react example

* Remove assign from examples

* Use jQuery

This is to reduce breakage if the fallback / default changes in a future release.

Resolves #2827.

* Fix redraw order

* Fix error when option is not defined

* Allow template labels

* Add .travis.yml file

* Add experiment travis code

* Fix react example

* Fix events returned from mouse events

* Fix example

* Rename censor to stringifyObject in example

Resolves #2696

Resolves #2790

* Fix redraw order
* Fix error when option is not defined
* Allow template labels
* Add .travis.yml file
* Add experiment travis code
* Fix react example
* Add toggleRollingMode option
* Update docs with toggleRollingMode option

* change setCustomTimeTitle title parameter, Now could be an string or a function
* Fixed indent and spacing

* Fix redraw order
* Fix error when option is not defined
* Allow template labels
* Add .travis.yml file
* Add experiment travis code
* Fix react example

- Also updated docs and examples for this
 - Fixed the positioning of the tooltip if groups was enabled
 - Removed missing parameters from Popup docstring

* Fix redraw order
* Fix error when option is not defined
* Allow template labels
* Fix react example

* Fix redraw order
* Add mouseup, mousedown, mouseover, click and dblclick events on timeline
* Add docs
* Add to evenlistener example
* Add mousemove event listener
* Fix example
* Remove mouseUp and mouseDown events and fix docs for mouseOver
* Remove mouseUp and mouseDown from example

* Fix redraw order
* Fix error when option is not defined
* Allow template labels
* Fix boolean types bug
* Add subgroup stacking
* Almost finish subgroup stacking
* Play with examples for subgroup order
* Fix stacked subgroups
* Fix subgroup stacking
* Add stackSubgroups option
* Fix example
* Add docs
* Fix onRemove item subgroups recalculate
* Return subgroup example and add stackSubgroup example
* Split stackSubgroup example to subgroup/html and expectedVsActualTimesItems.html

* Added HTML tooltip support for Timeline

* Fixed tooltip position on Firefox

* Added Timeline tooltip example

* Updated tooltip location to be next to the mouse

* Added HTML element to example

* Fix groupEditable
* Fix group drag in vertical direction bug
* Fix indentation
* Add initial nestedGroups property
* Fix redraw order
* Get nested groups hiding working
* Add order to nestedGroups
* Fix up example
* Add support for intially closed nested groups
* Add nested groups indentation
* Fix indents
* Add nested groups docs
* Fix example
* Revert indents
* Add classes to nested and nesting group labels and add nesting group css
* Use pure css for nested group icons
* Remove commented off lines and unnecessary btn
* Fix indents
* Add support to showNested:false in group
* Add semicolon
* Remove empty lines

* Fix redraw order

* Add initial itemVisibleFrame

* Add visibleFrameTemplate option

* Improve example

* Rename and fix example

* Fix comments from PR

* Fix example

* Add initial support for rolling mode
* Add rollingModeBtn and simplify example
* Make icon in css:
* Remove icon btn
* Add docs
* Fix zoom in rolling mode and initial start/end times

* Add support to fixed times drag and drop
* Fix IE support for drag and drop
* Add support to IE pointer location and data setting/getting

* Add hidden groups height calculations
* Fix jittering groups
* Remove non-existant parameter
* Cleanup example
* Remove console.log

* Added group option to change the visibility of a group
* updated the groupsEditable example page to demo the use of this feature
* updated the timeline documentation to describe this option

* Fixed bug introduced in #2284 where overrideItems is set to true when boolean is provided
* Added the option of supplying object to item.editable with updateTime, updateGroup, and remove functioning similarly to timeline.editable but only on a single item
* Updated Documentation to reflect the new feature
* Updated the individualEditableItems example page to show feature usage.

* Fixes #2273
* Remove console.log
* Fix for zoomable false
* Fix initial scrolling with verticalScroll and fix example

* Timeline:
* Add overrideItems sub-property to timeline.editable
* Change behavior to override item.editable when overrideItems=true
* Added new example for timeline/editing to higlight differeing editable behaviors.
* Update timeline doc to reflect addition of timeline.editable.overrideItems
* Timeline - fixed logic oversights found in editable override testing
* Timeline - enable changeGroup when item.editable = true and not overriden
* Timeline - Small format changes to documentation and example pages for overrideItems

* Add initial onChange item tooltip
* Add example and tooltipOnItemEdit template option
* Add docs and rename option
* Fix docs
* Fix example
* Change example's item types
* Fix point item tooltip
* Fix comments from PR and support bottom orientation properly
* Add semi-colon

* Add initial experiment
* Register drag and drop events
* Add initial drag and drop support
* Add drag and drop support for all types of objects
* Fix example
* Clean up code and add comments
* Fix example
* remove font awesome
* Fix example style
* Add meta tag to example and add selected when dropped

* Add zoomIn and zoomOut to timeline core functionality
* Fix example
* Fix jsdocs params
* inforce zoom percentage to be between 0 and 1