DQM adoption changes for the HLTD.
Merge branch 'atanas-branch' into atanas-test-2

Conflicts:
	python/hltd.py
The DQM config directory is accessed only if a DQM machine is specified.
Merge pull request #25 from batinkov/dqm_changes

DQM adoption changes to the HLTD
As discussed on Friday, we will merge this.