Ingest - list view > update

Update to ingest item list view, to follow newest design drafts
Group views

Group ingest settings views (templates) in separate folder
Create "deprecated" folder for overridden and currently unused
functionalities
Ingest > remember view choice

Save view choice in local storage for ingest screen
Add context menu functionality

Define context actions
Control context menu via keyboard
Clean up code for ingest
Switch between ingest and article edit

Buttons to navigate (switch) between ingest list and article edit screen
Switch between opened articles
Add some new sidetab icons
Fix small bug - fetch 'n' open
Image item preview

Add quick preview for image items
Fix few small issues and clean code
JSHint errors fix
Merge remote-tracking branch 'nikola/christmas-sprint'

Conflicts:
	app/scripts/superdesk-items/directives.js
Started scratchpad plugin.
Started scratchpadItemType provider.
Started scratchpadService.
Started scratchpad directives.
Started adding scratchpadItemType declarations to plugins.

WIP

SDUX-101
Completed scratchpad service.
Completed scratchpad directives.

SDUX-101
Fixed minor problems.
Implemented scratchpad template (still missing item templates, as they will be changed soon).
Minor improvements on collection actions.
Removed scratchpadItem.
Implemented item templates.
Fixed minor bugs.
Deleted unused files.