Info overlay appears correctly

Message disappears correctly now

Made duration optional

Info works for media without subtitles now

Main no longer needs to pause subtitles when there are none

Added Seek info display

Changed duration units to ms

Added info messages for more events

Fixed display logic, subtitles now correctly appear after info disappears

Removed debug timeout printf

Using unicode symbols for play,pause

Removed my additions to Makefile and gitignore...

Reverted to original Makefile.include

Added overlay disable argv option

Removed debug msgs, fixed audio chan display