isDebug now also checks melange version
To facilitate this getMelangeVersion was introduced and in order to
not show the 'Flush Cache' button a isLocal method was also added.
Patch by: Sverre Rabbelier
import os, sys
sys.path.insert(0, os.path.dirname(os.path.dirname(__file__)))
import pkg_resources
pkg_resources.require('WebOb')