Merge pull request #22 from dxwts/master

回归主干
russian locale string should be stored in values-ru-rRU, not values-ru
add support of KEYCODE_PAGE_UP/DOWN
update code according changes in OnyxAndroidSDK
crengine:Modified reader menu search UI
Merge pull request #23 from onyx-peekaboo/master

Modified reader menu search UI
change CoolReader.mDialogSearchView to private
improve the code of detecting/add/remove bookmark
update dict setting code according chantes in OnyxAndroidSDK
implement IReaderMenuHandler.showSpacingSettings()
adjust Reader window's attributes to keep full screen even when status bar, search dialog is showing
crengine: set smaller default footnote size
Merge pull request #24 from onyx-peekaboo/master

set smaller default footnote size
crengine:To increase support for mobile phones
Merge remote-tracking branch 'origin/master'
Merge pull request #25 from onyx-peekaboo/master

To increase support for mobile phones
modify russion translate
Merge pull request #26 from onyx-cap/master

修改俄语翻译
fix crashing error of null pointer
add WakeLock protect when opening book