Merge branch 'next' into develop

* next:
  📝 Update CHANGELOG
  💎 Release new version 2.1.0
  ✨ Add travis config
  🐛 Fix tests
  ✨ Add chartId as prop and fix width and height props
  ✨ Add bubble-chart example
  ✅ Add tests
  ✨ Add chart type Bubble
  Move examples into src for better testing
  📝 Update README
  💎 Release new version 2.0.0-alpha
  Add vue 2.0 build files
  📝 Update README
  ⬆️ Update dependency chartjs to 2.2.1
  Update examples
  ⬆️ Update dependency vue 2.0
  Change deprecated v-el to ref
  Change render() method name to renderChart

# Conflicts:
#	CHANGELOG.md
#	dist/vue-chartjs.js
#	dist/vue-chartjs.js.map
#	package.json
#	src/BaseCharts/Bar.js
#	src/BaseCharts/Bubble.js
#	src/BaseCharts/Doughnut.js
#	src/BaseCharts/Line.js
#	src/BaseCharts/Pie.js
#	src/BaseCharts/PolarArea.js
#	src/BaseCharts/Radar.js
#	src/examples/App.vue
#	src/examples/BubbleExample.js
#	test/unit/specs/Bar.spec.js
#	test/unit/specs/Bubble.spec.js
#	test/unit/specs/Doughnut.spec.js
#	test/unit/specs/Line.spec.js
#	test/unit/specs/Pie.spec.js
#	test/unit/specs/PolarArea.spec.js
#	test/unit/specs/Radar.spec.js

CHANGELOG.md

@@ -1,5 +1,10 @@
 # Change Log
 
+
+## [v.2.1.0](https://github.com/apertureless/vue-chartjs/tree/v.2.1.0) (2016-09-23)
+[Full Changelog](https://github.com/apertureless/vue-chartjs/compare/v1.1.3...v.2.1.0)
+
+
 ## [v1.1.3](https://github.com/apertureless/vue-chartjs/tree/v1.1.3) (2016-09-08)
 [Full Changelog](https://github.com/apertureless/vue-chartjs/compare/1.1.2...v1.1.3)
 
@@ -47,4 +52,4 @@
 ## [1.0.2](https://github.com/apertureless/vue-chartjs/tree/1.0.2) (2016-07-27)
 
 
-\* *This Change Log was automatically generated by [github_changelog_generator](https://github.com/skywinder/Github-Changelog-Generator)*
+\* *This Change Log was automatically generated by [github_changelog_generator](https://github.com/skywinder/Github-Changelog-Generator)*