fixes #1308 - error when trying to cancel build.

fixes #1175 - PXELinux does not render with spoof

fixes a couple of broken tests + show full error trace in development mode.

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

fixes #1446 - expire idle web sessions

fixes #1433 - Edit multiple Parameters (Operation FAILED: undefined method `reference_id_is')

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 #1313 ensure all host names are lowercased

Signed-off-by: Florian Koch <florian.koch1981@googlemail.com>

fixes #1434 - Status page is broken

fixes #1418 Add json call to retrieve bookmarks

Signed-off-by: Corey Osman <corey@logicminds.biz>