* Adds code coverage report the output of `npm test` and adds detailed html code coverage report using the command `npm run-script test-cov`

* Switch over to using functions in lib/ rather than dist/, so that code coverage stats are complete.

* Import vis at the top level to keep ItemSet passing

* Remove requirement for dist/vis in TimelineItemSet

* Adds tests for Popup

* Tests and sinon dependency introduced

* Code changes to modules to tighten up code

* Corrects broken tests and adds more tests to ColorPicker

* Adds additional tests to DataSet

* Adds tests for uuid

* Removes unused functions from util

* Adds tests for utils: recursiveDomDelete, isDate, convert and isType

* removes redundant code

* Adds additional util tests

* Address spacing, and unnecessary tests

* Correct test description

* Adds isDate tests

* Adds sanity check assertions to popup destroy tests

* Adds code coverage report the output of `npm test` and adds detailed html code coverage report using the command `npm run-script test-cov`

* Switch over to using functions in lib/ rather than dist/, so that code coverage stats are complete.

* Import vis at the top level to keep ItemSet passing

* Remove requirement for dist/vis in TimelineItemSet

* Adds unit tests for add, setOptions and on/off

* removes extraneous return value name in @throws tag of jsdoc