Add config for travis-ci
Update version nodejs in travis-ci config
Update travis-ci config
Update karma config
Update npm script for run test
Add travis-ci badges
Merge branch add-travis-ci
Merge branch 'develop'

* develop:
  Add travis-ci badges
  Update npm script for run test
  Update karma config
  Update travis-ci config
  Update version nodejs in travis-ci config
  Add config for travis-ci