Merge pull request #393 from giox069/next

Varoius fixes
Clean ToDo
GTK3 migration - gtk_misc_get_alignment deprecated fixes #365
GTK3 migration - gtk_misc_get_alignment deprecated fixes #365
GTK3 migration - from GtkTable to GtkGrid fixes #365
Reverted from commit 53212b0b91e5773650b25cd4316042a25ef02080 (back to the gtk_widget_reparent function)
Cleanup
Merge pull request #396 from FreeRDP/issue366

Issue #366. Tested with XDMCP plugin.
 Fix RDP race condifion, fixes #394 (missing HAVE_LIBVTE), removed unused function #399 and merge conflicts with #366
Fix RDP race condifion, fixes #394 (missing HAVE_LIBVTE), removed unused function and merge conflicts with #366. close #399