fix Runtime::locate() to calculate proper runtime directory

src/lib/src/Runtime.cc

@@ -9,7 +9,7 @@ namespace jes
 
     PathRef Runtime::locate(int type, const std::string & name)
     {
-        PathRef path = Core::instance.get_bin_path()->dirname()->join("runtime")->join(runtime_directories[type]);
+        PathRef path = Core::instance.get_bin_path()->dirname()->dirname()->join("runtime")->join(runtime_directories[type]);
         PathRef rv = NULL;
         switch (type)
         {