Merge pull request #22 from dxwts/master

回归主干
add support of KEYCODE_PAGE_UP/DOWN
modify Footer's height
FBReaderJ:Modified phone reader menu ui
Merge pull request #23 from onyx-peekaboo/master

Modified phone reader menu ui
update code according changes in OnyxAndroidSDK
FBReaderJ:书签标志在字体放大缩小后，位置判断不准确问题
Merge remote-tracking branch 'origin/master'
FBReaderJ:书签标志在字体放大缩小后，位置判断不准确问题
Merge pull request #24 from onyx-peekaboo/master

书签标志在字体放大缩小后，位置判断不准确问题
fix bug of page turning direction
Merge remote-tracking branch 'origin/master'
FBReaderJ:Modified reader menu search UI
Merge remote-tracking branch 'origin/master'
Merge pull request #25 from onyx-peekaboo/master

Modified reader menu search UI
fix wrong direction of search
change FBReader.mDialogSearchView to private
modify the behavior of DPAD_LEFT/RIGHT
update dict setting code according chantes in OnyxAndroidSDK
implement IReaderMenuHandler.showSpacingSettings()