Fixes #100. userTask locking and unlocking tested to work.

Author: adamfowleruk

rest-api/ext/process.xqy

@@ -17,6 +17,8 @@ import module namespace wfa="http://marklogic.com/workflow-actions" at "/app/mod
 declare namespace roxy = "http://marklogic.com/roxy";
 declare namespace wf="http://marklogic.com/workflow";
 
+declare namespace rapi = "http://marklogic.com/rest-api";
+
 (:
  : To add parameters to the functions, specify them in the params annotations.
  : Example