Fixing Neutron Subnet Details help text

Removing the '&lt;' and '&gt;' tags which were wrongly displayed in
the help text of the Subnet Details dialog for Neutron Networks /
Subnet create.

Closes-Bug: #1311820
Change-Id: I9e730a2d90a6174634c3233230e48e63549e1b9c
(cherry picked from commit af8e4965cb3702264c7e6f47fd9ba8b206a350da)
Tolerate completely missing floating_ips

In environments, where L3 agents are disabled,
launch instances just fails due quota missing
of not necessary floating ips.

This is a Icehouse-only bugfix; The underlying
issue was fixed in Juno by a blueprint implementation
and a new config option.

Change-Id: I4f9da72b95fb6489ee3c99f0006ec7b73a7d7e87
Closes-bug: #1383614
Merge "Tolerate completely missing floating_ips" into stable/icehouse
Merge "Fixing Neutron Subnet Details help text" into stable/icehouse
Horizon login page contains DOS attack mechanism

the horizon login page (really the middleware) accesses the session
too early in the login process, which will create session records
in the session backend.  This is especially problematic when non-cookie
backends are used.

Change-Id: I9d2c40403fb9b0cfb512f2ff45397cbe0b050c71
Closes-Bug: 1394370
Merge "Horizon login page contains DOS attack mechanism" into stable/icehouse