source file update:
I used "lupdate -no-obsolete C:\Users%USERNAME%\bitcoin\bitcoin-qt.pro", which uses the path to my local repo, to update the source file. I checked it and it now contains formerly missing strings + has the correct line references to the source code files.
There are only 2 strings which fall back to state unfinished, as they were updated in the source code files. These will need a re-translation. 8 new strings are in (i.E. Backup Wallet), which then need a Transifex translation. @tcatm Like you said, I only attached the bitcoin_en.ts in the commit.
remove cs_CZ: See issue #958, the bitcoin_cs_CZ.ts is completely untranslated and conflicts with the translated one bitcoin_cs.ts. So I removed the reference from bitcoin.qrc and deleted bitcoin_cs_CZ.ts.