api: implement subscribeToFeed/unsubscribeFeed (closes #623)
api, getCategories: properly return information for categories with 0 feeds, but children categories present
Merge pull request #77 from scarabeusiv/master

Fix pluralized forms and whitespace in translations and fix the l10n tools
localized_js: add ngettext
update translations
improve zoomed post content css
Allow translation of notices in prefs.
strip_harmful_tags: allow center
Revert "Add more czech strings."

This reverts commit 51a8cb4cdbecb1aee246f8cdb9802ad87f6ac0fe.
Merge remote-tracking branch 'upstream/master'