Added Code Climate badge
Added http-host frontend param

This change add a 'http-host' parameter in the /data/params list of values.

The 'http-host' value is set to be the value of the HTTP_HOST constant.
Release 2.5.0
Release 2.5.0
Release 2.5.0
Merge pull request #2136 from DeuxHuitHuit/current-domain

Added `http-host` page parameter