Merge pull request #6 from robertvanlienden/bugfix/fix-issues-with-empty-values

Fixed issue where versions will not get unset because of some typo

Author: lesstif

src/Project/Project.php

@@ -106,7 +106,7 @@ public function jsonSerialize()
             unset($params['leadName']);
         }
         if ($this->versions === null or count($this->versions) === 0) {
-            unset($params['version']);
+            unset($params['versions']);
         }
 
         return $params;