Added update status file. #11
Dropped id column and replaced it with message sid column. #11
Dropped unnecessary video_title column. #11
Updated to save message sid in database. #11
Added statuscallback params. #11
Added test data. #11
Added closing php tag. #11
Added code to update db with message status. #11
Fixed syntax error. #11
Added support for updating status of message. Fixes #11.