Allow multiple Authentication policy

And provide method to get configured multiauth with BasicAuth + AuthTkt
Update create scaffold for multiauth
Update changelog for multiauth
Use scale in mobile query
Merge pull request #973 from tonio/multiauth

Use multi-authentication policy
Fix port in the check collector
Merge pull request #1012 from camptocamp/checker-fix

Fix port in the check collector
Faster clean
No cache for all root pages
Incrase default cache
Merge pull request #1001 from camptocamp/query-scales

Use scale in mobile query
Do release 1.4.5.1
Start release 1.4.6
Merge branch '1.4'

Conflicts:
	c2cgeoportal/scaffolds/create/versions.cfg
Merge pull request #1011 from camptocamp/cleaner

Faster clean
Upgrade pyramid to 1.5
Use cache-version in the mobile app
Merge pull request #1013 from camptocamp/better-cache

Better cache
Merge pull request #1000 from tonio/pyramid_15

Upgrade pyramid to 1.5
Fixes gzip compression for javascript