Add groups option
Add onclick option
Add colors options
Merge pull request #8 from JohanLorenzo/add-groups-options

Add groups option, thanks!
Merge branch 'add-onclick-option' of https://github.com/JohanLorenzo/angular-chart into JohanLorenzo-add-onclick-option & added test
Merge branch 'JohanLorenzo-add-onclick-option'
test onclick option
exclude IntelliJ project settings
Merge branch 'add-colors-options' of https://github.com/JohanLorenzo/angular-chart into JohanLorenzo-add-colors-options

Conflicts:
	README.md
test color option
Merge branch 'JohanLorenzo-add-colors-options'