All test working:
- fixed netObj.parm update problem with 'setattr' object update method:
  - new 'netObj._setstatevalue(self,state,value)' function
    - now works for all variables
- testDHCPObjs.py 'passes'
- testChkleaseProc.py 'passes'

Fixed test for getNetRanges:
- had to make list unique before processing to get good values:
  - problem with duplicate ranges
    - must investigate how this happens