Merge branch 'master', remote-tracking branch 'upstream/master'
Updated russian translation to latest strings.xml file.
Add Japanese translation.
Following upstream
Following upstream 2
Update README with localization instruction
Add simple document for testing LaTeX
Merge pull request #26 from ASMfreaK/master

Russian localization updated
Merge pull request #27 from yoneken/JapaneseTranslation

Add Japanese translation.