Add convert when streaming file with bitrate over a certain threshold.
Conflicts:
	src/libtomahawk/Result.h
	src/libtomahawk/network/Servent.h
	src/libtomahawk/network/StreamConnection.cpp
	src/libtomahawk/network/StreamConnection.h
Replace QBuffer by a circular buffer in VorbisConverter.
Update VorbisConverter with new Resul and Track interface.
Add quality parameter for transcoding.
Seek using Phonon when streaming a conversion.
Conflicts:
	src/libtomahawk/network/StreamConnection.cpp
fix integration conflict

Conflicts:
	src/libtomahawk/network/StreamConnection.cpp