insert throw if cannot openning contexts
update input API
define isinf for windows build
clean OutputStreamVideo API
clean export class
clean build under Linux and remove overloading constructor
clean reader of packets
Merge branch 'cleanLinuxBuild'

Conflicts:
	src/AvTranscoder/InputStream.cpp
	src/AvTranscoder/OutputStreamVideo.hpp
clean Java wrapping
clean swig wrapping
set audio buffer in relation of the video stream
note: actually only support 24bps at 25fps
adding configure file for drone.io build
first fixes to support Libav10 and FFMpeg 1.2.5
multi support API: LibAV-10_beta1 and oldest FFMpeg 0.10.11 and 1.2.5
clean API between FFmpeg and LibAV
update scons project
update config file
test LibAvCodec version for enum
adding config files for packaging
update java paths