Revert "UI-3328: Reverse module presence check and check against skipped_modules (#134)"

Property was changed back to modules as it was decided that exposing a
list of modules enabled would be more useful than the opposite.

This reverts commit 3e43b4dde9.

submodules/users/users.js

@@ -324,7 +324,7 @@ define(function(require) {
 				}
 
 				// Check if user has vmbox enabled
-				if (!_.includes(_mainCallflow.skipped_modules, 'voicemail')) {
+				if (_.includes(_mainCallflow.modules, 'voicemail')) {
 					dataUser.extra.features.push('vmbox');
 				}
 			}