added django.contrib.humanize to base.py
added django.contrib.humanize to base.py

PanDAWMS/panda-bigmon-core,PanDAWMS/panda-bigmon-core,Foorth/panda-bigmon-core,Foorth/panda-bigmon-core,PanDAWMS/panda-bigmon-core,PanDAWMS/panda-bigmon-core,Foorth/panda-bigmon-core