refactoring libs
Merge branch 'feature-grunt-refactoring' of github.com:docdoku/docdoku-plm into feature-grunt-refactoring

Conflicts:
	docdoku-server/docdoku-server-web/yo/app/change-management/main.js
	docdoku-server/docdoku-server-web/yo/app/document-management/main.js
	docdoku-server/docdoku-server-web/yo/app/product-management/main.js
	docdoku-server/docdoku-server-web/yo/app/product-structure/main.js
	docdoku-server/docdoku-server-web/yo/bower.json