Fix unit tests for RHEL

Fixes bug 1158609
Fixes bug 1158612

Change-Id: I5ee6214a935cfa663c96b1ba6893f265890c4202
Use wrappers instead of direct calls to ip route.

 - extract the logic of ip route wrapper into a separate
   class to drop dependency on a specific network device
 - add route wrapper to IPWrapper class
 - use IPWrapper instead of direct calls to ip route in l3 agent
 - update tests

Fixes bug 1133133.

Change-Id: Ic7174b0676d1a565909bb5f6f950376cf8fae8d2
Merge "Use wrappers instead of direct calls to ip route."
Add missing security group quota settings to quantum.conf

Fixes bug 1164154

Change-Id: I32d1952fcc11559cc01c0dbde11de558b2a0b1fb
Revert "Use wrappers instead of direct calls to ip route."

This commit somehow broken floating ips with the l3 agent so we should revert
it till we figure out why.

This reverts commit f80f06a71de6e235c71e0333448cf59e44745c45.

Change-Id: Ic93eec0d95ad20baf53cc97476fcdff1b308ae91
Imported Translations from Transifex

Change-Id: I664f6de7988fc4987601df5a693347b131544e2f
Switch to flake8 from pep8.

 * flake8 supports more checks than pep8 (e.g. detection of
   unused imports and variables), and has an extension mechanism.
   A plugin to support automatic HACKING validation is planned.
 * See: http://flake8.readthedocs.org/

Change-Id: I8c9314c606802109a4d01908dbc74ecb792ad0ac
Add expected IDs to router.interface.* notifications

Fixes bug 1160431

The router.interface.{create|delete} notifications are intended to be
consumed by ceilometer, but did not include the router or tenant IDs
in the RPC message payload. Ceilometer requires both these data for
metering purposes.

The missing UUIDs are now provided in the notifications.

Change-Id: I1ca6e1d5377100a0549293e0bdff0182711c750f
Merge "Add expected IDs to router.interface.* notifications"
Imported Translations from Transifex

Change-Id: Ie9108ffeaa267ad932105b0e6d1f770f35896d17
Merge "Switch to flake8 from pep8."
Merge branch 'master' of https://github.com/openstack/quantum into bp/ovs-tunnel-partial-mesh