Merge commit 'origin/reorg'
New features about Session and timer management.
For now, no changes to Modules until validations assures us everything is safe... Yeah, safe
Quick debug to Session and first update to Callvote module. Now with Giraf::Sessions !
Small update to Callvote : regex debug & easy to use regex.
Small update to Weee : new pattern.
More conditionnal debugging in Admin and Trigger by use of Giraf::Core::_debug($what,$level) instead of old debug.
Update to module instal feature.
Now without LibXML !
Merge pull request #1 from gentilboulet/reorg

Reorg
Debug easying Session handling on start for autoloaded modules.
Cleanup in Sessions !
Update concerning Session usage in Chan.pm and Core
Quick debug on Callvote.pm to shutdown tactfuly.
Update to module install to bypass github https ^^.
Merge pull request #16 from gentilboulet/core

Core
Merge branch 'master' into harobattle

Conflicts:
	lib/Giraf/Module.pm