Admin - add a repository option to disable/enable repository themes
New feature - Optionnaly display WMS getCapabilities URL for each project ( #57 )

* WMS GetCapabilities URL displayed in the information panel for each map
* URL is also displayed in the modal window for each project in the home page (list of projects thumbnails)
* A new right has been created to allow to disable the feature for each repository

Supported by ADUGA : http://aduga.org (Agende d'Urbanisme du Grand Amiénois)