Merge remote-tracking branch 'upstream/master'
modern scroll 2.2
Merge remote-tracking branch 'upstream/master'
Polish l10n works
Merge pull request #27 from Chocimier/master

Further localisation
added intended version 2.2.1 changelog
updated translations (thx @metude & @Chocimier)
updated 2.2.1 changelog
new blanks for Czech translation (Ahoj1234)
Update config.xml
Merge pull request #28 from ahoj1234/patch-1

Czech description in config.xml
Update locales/cs/strings.js
Update config.xml
Merge pull request #30 from ahoj1234/patch-3

Corrected config.xml
Merge pull request #29 from ahoj1234/patch-2

Update locales/cs/strings.js
fix fullscreen mode only setting
finalized version 2.2.1 changelogs
fix scrolling with arrow keys (Opera Mail, GDocs)
Update locales/cs/strings.js
Merge pull request #32 from ahoj1234/patch-5

Update locales/cs/strings.js