Fixed distclean chain for script generation.

* Merged r3149: Fixed cleaning of packaged CDI library. from trunk/echam-dev
* Added removal of config.inc, stamp files
* Added mkexp sub directory to distclean chain

Makefile

@@ -5,6 +5,8 @@ all:
 clean:
 	$(RM) -r build dist MANIFEST *.pyc
 
+distclean: clean
+
 doc:
 
 dist: __FORCE__