Merge pull request #20 from onyx-peekaboo/master

Up and down keys corresponding to the functional overlay
add load fonts from system/fonts
Merge pull request #21 from dxwts/master

回归主干
update according changes in OnyxAndroidSDK
add Russian
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