fixed preview label
added possibility to load and reset custom css/translations
various UI theme bugfixing
Receiver Preferences UI refactored
Translations Updated
various UI fixes
varios admin pages refactored using tab paging
various UI rewrites; added possibility to download files collections (tar.gz)
removed old unused code
exported comments counter to receiver tip preview
fixed a bug and changed dataformat
finished implementing UI for tip delete/tip global delete/tip postpone
Merge branch 'devel' of github.com:globaleaks/GLClient into devel

Conflicts:
	app/views/status.html
various UI fixes
implemented UI to view/delete custom uploaded files.
various UI enhancement in generic file uploader
various UI fixes
added possibility to sort tip in receiver/admin overviews
added authentication over file download and collection download
dependences updated; translations updated;
Merge pull request #115 from globaleaks/devel

Merge pre GlobaLeaks 2.30