added new (restxq based) module to handle the cx-service (crosswalks)
added new operation: get-graph - returns instance structure as graph (xml/json)
passing run-flag to get-mappings, fixed selecting correct Termsets only for graph generation
added initial support for restxq modules
(in controller only explicit for now)
Merge branch 'cr-xq' of github.com:vronk/SADE into cr-xq
corrected login; also module protection observes project protection