PoChecker: shortened button captions

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@45675 4005530d-fff6-0310-9dd1-cebe43e6787f
PoChecker: regenerated translations; updated Russian translation

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@45676 4005530d-fff6-0310-9dd1-cebe43e6787f