Localization centred patches and additions

Includes some minor NL locale fixes.
'Autosave' locale had the wrong data-i18n attribute and is now translated correctly.
Added locale for 'Notifications' in user settings panel.
Editor Tables (for Articles and the like) now have i18n applied correctly (it didn't translate before).

Added locale for "Create new Article" and similar together with "Search Articles Here" for the button at http://localhost:3000/editor/article. It used to be just "Create New #{var}" and I tried to keep it that way, but 'Article' really needed a translation or it would look horrible. Same goes for "Search #{var}s Here". Adding extra locale for plurals was overkill. The easiest solution adds 6 locale strings; 3 for "Create New. ." and 3 for "Search .. here".