ENYO-2877: Fixed a few errors reported by jshint, added .travis.yml file to automatically execute jshint on pull-request submission.

Enyo-DCO-1.1-Signed-off-by: Yves Del Medico <yves.del-medico@hp.com>
Merge pull request #6 from enyojs/ENYO-2877

ENYO-2877: Fixed a few errors reported by jshint, added .travis.yml file...