Merge pull request #33 from androidli/master

fixed the critical bug in turning page by swiping.
Modify Russian translation
Merge remote-tracking branch 'onyx-intl/master'
Merge pull request #34 from onyx-cap/master

Modify Russian translation
Merge pull request #35 from androidli/master

support go back to previous view after pressing links.
Delete NOOK related infos.
Merge pull request #36 from onyx-cap/master

delete NOOK related infos.
add Polish
Merge pull request #37 from onyx-cap/master

Add Polish translation.