OptionLoader: add getSampleFormats
OptionLoader: update getSampleFormats

* Add const.
* Fix if videoCodec is NULL (no codec corresponding to the
videoCodecName).
OptionLoader: update doc of getPixelFormats
adding more metadatas about audio streams
rename audio profiles in small caps
OutputAudio: completely set profile

* Completely set the profile of the audioDesc, by using all key of the
ProfileDesc.
* Like the videoDesc, set parameters twice (before and after a setup),
to set the parameters which need a setup.
OutputVideo: refactoring setProfile
OutputAudio: refactoring setProfile
Merge pull request #22 from cchampet/master

Profile audio: check some values when setProfile
Merge pull request #23 from cchampet/getSampleFormats

OutputAudio: completely set audio profile
only reindent
adding pixel contructor from string
adding enter at the end of file
starting to add substream processing
print error message when write packet is impossible
compute packet size for stream properties
Merge branch 'master' of github.com:avTranscoder/avTranscoder

Conflicts:
	src/AvTranscoder/Transcoder/StreamTranscoder.cpp
	src/AvTranscoder/Transcoder/StreamTranscoder.hpp
fix library check order
update to remove deprecated methods
include header and fix LibAV build