fixes #1469 - vlan field missing in subnets

fixes a couple of html rendering errors in views

fixes #1401 - smart proxies filtering. will not remember the selected filter once an operation was selected

fixes #1437 Solaris Deployment fix

Signed-off-by: theforemanuser123 <oliver_weinmann@gmx.de>

fixes #1399 - Hostgroups not attaching to Nodes

fixes #1281 - assingn more than one domains to a subnet

fixes #786 - Add the option to use existing DHCP reservations

note that this patch only ensures that the ip used is the same as the
existing dhcp record.
if there is a mistmatch in what foreman expects in the reservation vs.
actual state, #944 should kick in.

fixes #1361 -- Add gateway and dns fields to Subnets

• Allow subnet values to be accessed in provisioning templates

fixes #1422 - Media is greyed out when creating Solaris hosts

fixes #1421 - expose subnet ranges for automatic IP address allocations