Bump to version 0.1
add missing new keyword
fix issue when provided dimensions are null
add supportBframes function
rename error message
add some docs info
Merge pull request #5 from nlegoff/review

Review
Implement supportBFrames method to resizableVideos
Merge pull request #6 from nlegoff/review

Implement supportBFrames method to resizableVideos
Escape shell args
Update dependencies
Change threads settings
Fix name
Update API doc
Add PHP FFmpeg Extra link
Update dependencies
Add Silex FFMpegServiceProvider
Update usage
Update API documentation
Add option to service provider for ffmpeg threads number