* quit RetroShare with rApp not more use qApp for quit, shutdown is now faster.
* added first retranslateUi for MainWindow
* changend Add Share string.
git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@1944 b45a01b8-16f6-495d-af2f-9b41ad6348cc