Upgrade packages and tools for Travis unit testing (#3262)

* Add C++11 and canvas module for travis tests

* Added libgif, updated version gulp-clean-css

* Update version webpack

* Force versions minimatch, graceful-fs; fixes for upgraded webpack

* Force version minimatch through travis.yml

* Fix comma's in json

* Add extraneous modules to package.json; final attempt at forcing versions of minimatch and graceful-fs

* Final changes module versions

* Fix due to linting

* Fix typo in package.json

* Upgrade eslint

.eslintrc

@@ -22,5 +22,6 @@
     "no-redeclare": 0,
     "no-unreachable": 1,
     "no-unused-vars": 0,
+    "no-useless-escape": 0,
   }
 }

.travis.yml

@@ -1,5 +1,15 @@
 language: node_js
-node_js: "6"
+node_js:
+  - "6"
+env:
+  - CXX=g++-4.8
+addons:
+  apt:
+    sources:
+      - ubuntu-toolchain-r-test
+    packages:
+      - libgif-dev
+      - g++-4.8
 before_script:
   - npm run lint
   - npm install -g gulp

gulpfile.js

@@ -12,7 +12,7 @@ var argv = require('yargs').argv;
 
 var ENTRY             = './index.js';
 var HEADER            = './lib/header.js';
-var DIST              = './dist';
+var DIST              = __dirname + '/dist';
 var VIS_JS            = 'vis.js';
 var VIS_MAP           = 'vis.map';
 var VIS_MIN_JS        = 'vis.min.js';
@@ -38,7 +38,8 @@ function createBanner() {
       .replace('@@version', version);
 }
 
-var bannerPlugin = new webpack.BannerPlugin(createBanner(), {
+var bannerPlugin = new webpack.BannerPlugin({
+  banner: createBanner(),
   entryOnly: true,
   raw: true
 });

lib/network/modules/ManipulationSystem.js

@@ -1077,8 +1077,8 @@ class ManipulationSystem {
         });
       }
       else {
-        throw new Error('The function for add does not support two arguments (data,callback)');
         this.showManipulatorToolbar();
+        throw new Error('The function for add does not support two arguments (data,callback)');
       }
     }
     else {

package.json

@@ -8,6 +8,9 @@
     "type": "git",
     "url": "git://github.com/almende/vis.git"
   },
+  "bugs": {
+    "url": "https://github.com/almende/vis/issues"
+  },
   "keywords": [
     "vis",
     "visualization",
@@ -48,21 +51,25 @@
     "babel-preset-es2015": "^6.6.0",
     "babel-runtime": "^6.22.0",
     "babelify": "^7.3.0",
+    "canvas": "^1.6.5",
     "clean-css": "^4.0.2",
-    "eslint": "^3.15.0",
+    "eslint": "^4.2.0",
     "gulp": "^3.9.1",
-    "gulp-clean-css": "^2.3.2",
+    "gulp-clean-css": "^3.7.0",
     "gulp-concat": "^2.6.1",
+    "gulp-eslint": "^4.0.0",
     "gulp-rename": "^1.2.2",
     "gulp-util": "^3.0.8",
     "jsdom": "9.9.1",
     "jsdom-global": "^2.1.1",
+    "merge-stream": "^1.0.0",
     "mocha": "^3.2.0",
     "mocha-jsdom": "^1.1.0",
     "rimraf": "^2.5.4",
+    "test-console": "^1.0.0",
     "uglify-js": "^2.7.5",
     "uuid": "^3.0.1",
-    "webpack": "^1.14.0",
+    "webpack": "^2.0.0",
     "yargs": "^6.6.0"
   }
 }