GTK: Added most recent save state loading (ALT+R, Load State -> Most Recent)

git-svn-id: https://pcsxr.svn.codeplex.com/svn/pcsxr@89978 e17a0e51-4ae3-4d35-97c3-1a29b211df97
Fixed gtk notice dialog hiding.

git-svn-id: https://pcsxr.svn.codeplex.com/svn/pcsxr@89979 e17a0e51-4ae3-4d35-97c3-1a29b211df97
cdriso: warning dialog popup regarding tracks that could not be loaded from cue sheet.

git-svn-id: https://pcsxr.svn.codeplex.com/svn/pcsxr@89980 e17a0e51-4ae3-4d35-97c3-1a29b211df97
Enabled loading archive file from cue sheet & avcodec_frame_free deprecated.

git-svn-id: https://pcsxr.svn.codeplex.com/svn/pcsxr@89981 e17a0e51-4ae3-4d35-97c3-1a29b211df97