Added role definition
Merge branch 'master' of https://github.com/ging/licode
Merge branch 'master' of https://github.com/ging/licode
Remove unneeded unlock
Changed the way we allocate the buffers
Added support to failed DTLS transport
Merge branch 'master' of https://github.com/ging/licode
Changed DTLS buffers
Fixed warnings in ErizoAPI
Resolved errors related to Firefox
Merge remote-tracking branch 'upstream/master'