Add a method for getting all user objects

Author: todinov

src/users.js

@@ -143,6 +143,24 @@ Users.prototype.list = function () {
     return usersList;
 };
 
+/**
+ * Returns an array of all user objects
+ * @returns {Array}
+ */
+Users.prototype.all = function () {
+    var self = this,
+        users = [],
+        i;
+
+    for (i = 0; i < self.data.length; ++i) {
+        if (self.data[i].projectId === self.projectId || self.data[i].customerId === self.projectId) {
+            users.push(self.data[i]);
+        }
+    }
+
+    return users;
+};
+
 /**
  * Returns the number of registered identities
  * @return {number}