Merge branch 'POC' into 'master'

POC ability to set most as OpenPaaS home page

See merge request !23

frontend/app/app.constants.js

+(function(angular) {
+  'use strict';
+
+  angular.module('linagora.esn.most')
+    .constant('MOST_MODULE_METADATA', {
+      id: 'linagora.esn.most',
+      title: 'Most',
+      homePage: 'most'
+    });
+})(angular);

frontend/app/app.run.js

+(function() {
+  'use strict';
+
+  angular.module('linagora.esn.most')
+    .run(runBlock);
+
+  function runBlock(esnModuleRegistry, MOST_MODULE_METADATA) {
+    esnModuleRegistry.add(MOST_MODULE_METADATA);
+  }
+})();