MP1-4578 : Minimize on standby and restore on resume and send correct msg message to plugins.
Merge remote-tracking branch 'remotes/upstream/MP1-4578-BUG-Wrong_window_handle_(MP_not_focused)_causes_freezes_after_resume_from_standby_V2' into 1.10.0Fork-BDJ

Conflicts:
	mediaportal/MediaPortal.Application/MediaPortal.cs