Allow multiple Authentication policy

And provide method to get configured multiauth with BasicAuth + AuthTkt
Update create scaffold for multiauth
Update changelog for multiauth
Fix the tests after merging the 1.4 branch
Merge pull request #1010 from camptocamp/fix-merge

Fix the tests after merging the 1.4 branch
Merge pull request #973 from tonio/multiauth

Use multi-authentication policy
Faster clean