Pagination fix 3

Fixed minor error in pagination.
Implement user picture edit via user list view.

Move picture edit to user detail controller and
reuse it on profile page.
Also add default avatar picture.

SDUX-34
Refactor user edit on user profile/detail.

Add a notification service to display notifications.
Add sd-user-edit directive for editing used from both profile and list.

SDUX-34
Fix user picture saving on upload save.

SDUX-34
Merge remote-tracking branch 'ozan/pagination-fix-3'

Conflicts:
	app/scripts/superdesk/users/controllers/list.js
Add apiary blueprint.
Transferring blueprint from apiary.io
Update newsItems module to work with ninjs.
Fix jshint errors.
Adds initial CHANGES file.