Progress on modpython global hooks.

OnModuleLoading, OnModuleUnloading, OnGetModInfo work fine.
Need to add: OnClientCapLs, OnGetAvailableMods, OnLoginAttempt

See #98

modules/modpython.cpp

@@ -18,7 +18,7 @@
 
 #include "modpython/swigpyrun.h"
 #include "modpython/module.h"
-#include "modpython/retstring.h"
+#include "modpython/ret.h"
 
 class CModPython: public CModule {
 
@@ -197,6 +197,11 @@ public:
 				Py_CLEAR(pyFunc);
 				return HALT;
 			}
+			if (!PyObject_IsTrue(pyRes)) {
+				// python module, but not handled by modpython itself.
+				// some module-loader written on python loaded it?
+				return CONTINUE;
+			}
 			Py_CLEAR(pyFunc);
 			Py_CLEAR(pyRes);
 			bSuccess = true;