Scons tool: add windows7 scons example
SConscript: fix script if config has section 'COMMON'
Common: fix variable used after null check

Warning from Coverity Scan.
Common: fix out-of-bounds access in setters functions of ParamSet

* Avoid const_cast.
* Same way in all AvTranscoder to get the FFmpeg errors by using an
array fo char passed to av_strerror function.
* Warnings from Coverity Scan.
VideoStreamProperties: fix uninitialized variable topFieldFirst

Warning from Coverity Scan.
Merge pull request #64 from cchampet/fix_coverity_warnings

Fix Coverity Scan warnings
SConstruct: add common paths to env
SConstruct: manage C++ environment for win
Sconscript: base envJava and envPy on C++ environment

Create java and python environments is simplier.
SConstruct: fix win build by adding python to LIBPATH
SConscript: clean

Remove duplicate variable on C++ environment.
SConscript: clean how to check libav when unix
Apps: create cpp folder for cpp apps

* Want an app directory like this:
     * app
          * cpp
               * SConscript
          * java
               * SConscript
          * python
               * SConscript
* The Sconscript in app will call each SConscript (in cpp, java, and
python).
Merge pull request #67 from cchampet/build_windows

Build windows
Apps: create java folder for java apps

* Update jTranscoder app to fit to the package name and an existing
avTranscoder class.
* Comment the line which calls the Sconscript of java apps from
SConstruct (need several builds to generate class files of java
apps...need to find something better).
Sconscript of src: refactoring

Move how to generate JAR before install instructions.
Sconscript: put Jar in a directory when build it
Merge pull request #68 from cchampet/build_organize_apps

Build: organize apps
update doxygen
SConscript: versioning libs on windows

* If windows plateform, add version to the name of the lib.
* Else, use scons tools about versioning (like before).