Add karma
Add tests: unit and e2e
Update bower config
Update karma config
Update karma config
Udate karma config
Add clean gulp plugin
Add port
Add karma in gulp
Update doc file
Add gulp task for run karma
Merge branch 'add-karma' into develop

* add-karma:
  Add gulp task for run karma
  Update doc file
  Add karma in gulp
  Add port
  Add clean gulp plugin
  Udate karma config
  Update karma config
  Update karma config
  Update bower config
  Add tests: unit and e2e
  Add karma