Close GH-683: gruntfile: removed new line symbol from output_wrapper. fixes #679.
Adding line to CHANGELOG
Merge branch 'master' of https://github.com/videojs/video.js

* 'master' of https://github.com/videojs/video.js:
  Adding line to CHANGELOG
  Close GH-683: gruntfile: removed new line symbol from output_wrapper. fixes #679.