Merge pull request #58 from jeromelebleu/dev

Refactor moulinette versioning
Do not fail at hook removal (fixes #57)
Do not fail if no user was found
Merge pull request #59 from jeromelebleu/dev

Dev
Change min_version check and remove temp file
Reload SSOwat configuration at user creation
Avoid fail when pprint an unicode character
Update yunohost_app.py

Correction
Merge pull request #60 from M5oul/patch-1

Update yunohost_app.py
Correct yunohost-config-dspam mess
Allow no arguments in manifest
Update yunohost_firewall.py
Fix empty password breach