issue in dssa image printing
correct for solid-angle formula
update tests
Related to issue #31
add tests and fix bugs in gaussian bluring using FFTs. All modes for
borders are now available
related to issue #39
fix one bug
switch version to release candidate
Merge remote-tracking branch 'origin/master' into merge_calib

Conflicts:
	pyFAI-src/calibration.py
addapt tests to debian 7
Merge remote-tracking branch 'origin' into merge_calib
remove the .py extension on the script (part of debian packaging)
Update options for polarization corrections in scripts
new additional docstrings
better documentation for scripts