Got rid of deprecated methods
Implemented lazy loading on providers
Removed useless condition
Simplified URL matching
Lightened code for caching
Removed exceptions catching, as it was pointless
Got rid of a try/catch block
Using PHP 5.4
Removed genericity handling
Renamed Set
Extracted ProviderCollection config and removed specific OEmbed providers
Removed Generic oEmbed provider
Renamed FileGetContents
Removed useless use statements
Made default HTTP code configurable
Doc
Simplified DomDocument parser
Cleaned up
Got rid of the attributes merging mess
Removed useless caching