L10n: tr()-fixes, message strings, compiler warnings.

Rename 'QML standalone application' to 'QML application'
and the 'old-style' QML applications to
'QML Viewer based applications'.

For the QML renaming:
Rubber-stamped-by: Alessandro Portale <alessandro.portale@nokia.com>

src/plugins/coreplugin/ssh/sshconnection.cpp

@@ -286,7 +286,7 @@ void SshConnectionPrivate::handleIncomingData()
             e.errorString);
     } catch (Botan::Exception &e) {
         closeConnection(SSH_DISCONNECT_BY_APPLICATION, SshInternalError, "",
-            tr("Botan exception: %1").arg(e.what()));
+            tr("Botan library exception: %1").arg(e.what()));
     }
 }