FIX: typo in de-DE
UPD: set v2 to version 2.1 - the documentation (http://apiblog.youtube.com/2011/10/introducing-google-account-support-and.html) states that 2.1 should work with unlinked accounts.
UPD: improved episode regex
ADD: 'Browse Channels' - not finished yet
UPD: added app key