Add hook to add explanations of hotkey actions via plugins.
updated german translation
Merge branch 'master' of https://github.com/HeikoAdams/Tiny-Tiny-RSS
label_create: set default owner_uid
pref-prefs: don't use schema-defined help/desc/section names
schema: remove unused prefs help_text/short_desc/section_name
remove blank string gettext invocations
rebase translations
update pref descriptions
rebase translations
Merge branch 'master' of git://github.com/HeikoAdams/Tiny-Tiny-RSS into HeikoAdams-master

Conflicts:
	locale/de_DE/LC_MESSAGES/messages.mo
	locale/de_DE/LC_MESSAGES/messages.po
rebase translatiosn
Merge pull request #119 from dandersson/hotkey_info_hook

Hook to add hotkey definition texts via plugins
Add more czech strings. 42 remaining.
Fix header to contain relevant info. Wipe unused strings.
fix mark as read dropdown not resetting
Merge branch 'master' of github.com:gothfox/Tiny-Tiny-RSS
Merge pull request #122 from scarabeusiv/master

Czech translation update
Merge branch 'master' of github.com:gothfox/Tiny-Tiny-RSS
modify dojo rebuild script to remove uncompressed files