CI migration/automation + new test to ease iTop release management

- new Jenkinsfile and .jenkins removal to launch phpunit/behat tests
triggered on both iTop build and push.
 - N°3053 - Check XML conversion methods
 - N°3057 - New build recipe
 - N°3059 - Automatically set the documentation URLs
 - N°3052 - Check community modules XML version against latest version
 - N°3054 - Check community modules version against major version
 - N°3062 - setup.css file integrity test
 - N°3060 - Check consistency between the list of modules and installation.xml
 - Add exclusion group for CI
 - N°3061 - Automatically check the installation.xml consistency

css/setup.scss

@@ -16,6 +16,8 @@
  * You should have received a copy of the GNU Affero General Public License
  */
 
+/* integrityCheck: begin (do not remove/edit) */
+
 /////////
 // Colors
 $content-border-color: #CBD2D9 !default;
@@ -314,3 +316,4 @@ fieldset{
     }
 }
 
+/* integrityCheck: end (do not remove/edit) */