Bugfix in refreshdyn.py script that generate dyncode

Adapted to the new LodelContext

scripts/admin.py

 import os, os.path
 
 sys.path.append(os.path.dirname(os.getcwd()+'/..'))
+from lodel.context import LodelContext
+LodelContext.init()
 from lodel.settings.settings import Settings as settings
 settings('globconf.d')
 from lodel.settings import Settings