fixed possible exception
cleanup
fixed #122: start/stop screen wakelock in onWindowFocusChanged (not in onResume/onPause)
updated ChangeLog
release date
removed method not defined in API <= 10
1.7.5
version number => 1.7.6
possible fixes for some NPEs
fixed possible NPE
release date
VerifyError fix
more possible NPE fixes
version code += 3
version code += 3
fixed XML parsing
version number => 1.7.7
fixed series order in local library
Update cs.xml

Translated string "Interface language"
Merge pull request #126 from Trottel/patch-2

Update cs.xml