Angular Vibrator is alive

 - module/service implemented
 - example created
 - test implemented
 - README.md done
 - build populated v/ Grunt
Service replaced with a provider

 + Provider allows the user to configure it
 + setSequences and getSequences available
 + Tests implemented
 + Close #2
Error handling implemented

 - Error handling works with $rootScope.$broadcast event
 - Documentation updated
 - Example updated
 - isSupported now accept an argument for overriding the
   navigator (useful for unit test)
 - Close #3
Create gh-pages branch via GitHub
Merge branch 'gh-pages' of github.com:cyrilf/angular-vibrator into gh-pages