Experimental support for seeking in http files. Thanks Naren
Print warning if gpu_mem is not sufficient
Add option to blank the background of the video.

Note: this is less efficient than clearing it with -r and restoring with fbset
Fix typo in http seeking commit
Update help & readme, -b is no longer --threshold.
Merge pull request #6 from skgsergio/master

Upate help & readme, -b is no longer --threshold.
Support aspect ratio changes in stream
Add support for italics in subtitles