Changing admin view of hardware policy checks.
Merge branch 'master' of https://github.com/lumasepa/arritranco into tic-ull_master

Conflicts:
	arritranco/monitoring/nagios/admin.py
Fixed nagios host template address field.

* It was printing the IP object instead of its address.
Added services on nagios sondas cfg view
Fixed sondascfg template to iterate sondas.

* Each check can be done by multiple sondas.
Added slug to sondas, changed description of unrack net dev to be blank and null