Correct raw table regex in test_security_groups_rpc

Currently in test_security_groups_rpc, raw table regex uses nat table
chains regex but raw table chains[1] is a strict subset of nat table
chains[2] so a more strict regex should be used as raw table chains
regex.

[1] OUTPUT, PREROUTING
[2] OUTPUT, POSTROUTING, PREROUTING, float-snat, snat

Change-Id: I6f32cda917c2f882f5fd17b6fa105def5572cdef
Update i18n translation for neutron.api log msg's

Validate that hacking rules apply to directory neutron/api

Change-Id: Idd54964dbb3a48505c20117c79ce57913a7f1c12
Partial-bug: #1320867
Fix hostname regex pattern

Current hostname_pattern regex complexity grows exponentially
when given a string of just digits, which can be exploited to
cause neutron-server to freeze.

Change-Id: I886c6d883a9cb0acd9908495eec50bf0411d8ba8
Closes-bug: #1378450
Drop RpcProxy usage from PluginReportStateAPI

Drop the usage of the RpcProxy compatibility class from the
PluginReportStateAPI rpc client class.  It now uses the appropriate
oslo.messaging APIs directly, instead.

Part of blueprint drop-rpc-compat.

Change-Id: I7101331a556bd0a5c8f782ae6cb4103151e6c45c
Fix a race condition adding a security group rule

setup_port_filters() needs to grab self.devices_to_refilter
before it calls prepare_devices_filter(), else it could skip
processing a device if an RPC arrives while it's processing
new devices.  That device will now be handled the next time
it's called.

Bug introduced in commit 3046c4ae22b1

Change-Id: Ib2f460cc095bbea8f9c767dcb9b4d4b66f1a7811
Closes-Bug: 1393925
Merge "Update i18n translation for neutron.api log msg's"
Merge "Correct raw table regex in test_security_groups_rpc"
Merge "Drop RpcProxy usage from PluginReportStateAPI"
Merge "Fix hostname regex pattern"
Merge "Fix a race condition adding a security group rule"
Merge branch 'master' of https://github.com/openstack/quantum