Show user picture in users list.

SDUX-39
Lodash dependency

Added lodash as a dependency in the main module.
Initial grunt requirejs task to compile the app.
Merge remote-tracking branch 'ozan/lodash-dependency'
Merge remote-tracking branch 'ozan/settings-service-improvement'
State service

Added a state service to handle application state.
Updated sdPagination and sdSort directives to use state service.
State service

Removed old code from users list controller.
State service

Changed settings and state service initialization.
Merge branch 'state-service' of github.com:eozan/superdesk-client into state-service

Conflicts:
	app/scripts/superdesk/state.js
	app/scripts/superdesk/users/module.js