Bitcoin-Qt: use $$TRANSLATIONS in bitcoin-qt.pro
Bitcoin-Qt: use $$TRANSLATIONS in bitcoin-qt.pro

- instead of parsing the project file by using $$_PRO_FILE_ just use
  $$TRANSLATIONS, which contains a list of all needed files, to build
  our *.qm translation files

wastholm/bitcoin,wastholm/bitcoin,wastholm/bitcoin,wastholm/bitcoin,wastholm/bitcoin,wastholm/bitcoin