style(gruntjs): removed CR
refactor(img): remove unecessary img
feat(models/app): add a new icon property
feat(img): add images for test will be replaced later by external images or images loaded into the db
chore(gruntjs): add mongo-sample task which can be used to load sample data into mongodb
chore(bower): add restangular dep
chore(jshint): set usestrict option to false
chore(gruntjs): add task to prepend concatenated angularJS files with 'use strict';