Merge pull request #1 from kelkoo-services/master

Some new features
Merge pull request #2 from kelkoo-services/master

Freeze Jquery dependency
Upgrade jquery-rails version to 3.0.4
First jquery dependencie revert
Revert "Freeze Jquery dependency"

This reverts commit e2bad9c9eed06452b4aad6c3debdad3c970be3e7.
Again Jquery last version dependency
Remove jquery dependency. Delegate it to each project
Add source tracker. Requires manually call to 'append' if you want to include source on your project
Add methods for extending or modifiying source object.
Add source on the index.js
Revert jquery change as was in kelkoo-services branch
Bundle it...
Merge with kelkoo-services
Merge with kelkoo-services branch
Add more tests for source feature
Add more testing for source object
Add source feature documentation
Merge pull request #2 from gguerrero/master

Add source object