scripttest: add command print
scripttest: add "recursive" option
scripttest: add default options

* print detailed errors
* add a timeout to nose
scripttest: add timeout to the subprocess

* use subprocess Python 32 backport
* add timeout to the subprocess, so if nosetests crashes and stay
stuck... there is a timeout
utils: less aggressive message
add "test" alias
[compiler] Fix clang version retrieving on osx.
[project] Creating subpackage.
Create package __init__.py file.
[project] Fix package import
clang: extract version number using re
clang: add try/except

If the binary provided (possibly by user) doesn't exist...
nothing: remove comment
nothing: remove print and spaces
don't need to recreate options
fix: when compiler is changed by user
openimageio: add dependency to openjpeg
pySwigBinding: add missing return target
move from tab to space
fix "jobs" option