use checked/unchecked for hightlight drawer style
add night mode option that inverts screen color
use checked/unchecked for show page overlap option
decrease toc entry indentation
use checked/unchecked for zooming options
decrease indentation of touch menu entries
use checked/unchecked for language option
update pot file
respond Menu key to show reader menu
save doc settings when receiving IntoSS or Suspend or SaveState events
add tap zone configuration for the minibar
fix typo
fix insensitive rotate gesture detection
This should fix #546.
strip encoding suffix in locale name like zh_CN.utf8
So that we can automatically change to language defined in
the LANGUAGE or LANG env variable.
automatically set language on Android
Merge pull request #634 from chrox/master

add night mode option that inverts screen color