Fixed: enabled translation for Hide/Expand Button in Messages

git-svn-id: http://svn.code.sf.net/p/retroshare/code/branches/v0.5.0@2627 b45a01b8-16f6-495d-af2f-9b41ad6348cc

retroshare-gui/src/gui/MessagesDialog.cpp

@@ -443,12 +443,12 @@ void MessagesDialog::togglefileview()
 	if (ui.expandFilesButton->isChecked())
 	{
 	  ui.expandFilesButton->setIcon(QIcon(QString(":/images/edit_remove24.png")));
-	  ui.expandFilesButton->setToolTip("Hide");
+	  ui.expandFilesButton->setToolTip(tr("Hide"));
 	}
 	else
 	{
     ui.expandFilesButton->setIcon(QIcon(QString(":/images/edit_add24.png")));
-	  ui.expandFilesButton->setToolTip("Expand");
+	  ui.expandFilesButton->setToolTip(tr("Expand"));
 	}	
 
 }