Preserve floating ips when initializing l3 gateway interface

Change-Id: I5a88225d291538cb9db0f8f4afa348192b8b984d
Closes-Bug: #1233271
Add request timeout handling for Mellanox Neutron Agent

Add request timeout handling for messages sent to eswitch Daemon.
Using configurable number of retries and increasing waiting interval
between retries resend the message.
If request timeout persists, eswitch daemon is not reachable.
In such case, exit the agent process.

Closes-Bug: #1228827

Change-Id: If1290bedafe7a0dd8a61cbe328510075edeb1e5b
Removed erronus config file comment

The comment stating 'DHCP agents needs it.' with regards to the
rpc_notifier notification_driver is incorrect.  Looking through
the code, I see no place this is true.  I believe it to be an
error.

Closes-Bug: #1258390

Change-Id: I58c2f9290731f3e88e4b4a5bdb600aa5bac1a12b
Add fwaas_driver.ini to setup.cfg

Change-Id: Ie8157c0df343fb1009e7bc5b3ed2f2d4b0d0afec
Closes-Bug: 1258585
Imported Translations from Transifex

Change-Id: I6f89af93f175d2de8eb2e00b08217a0b29e44385
Merge "Add request timeout handling for Mellanox Neutron Agent"
Merge "Removed erronus config file comment"
Merge "Imported Translations from Transifex"
Merge "Add fwaas_driver.ini to setup.cfg"
Merge "Preserve floating ips when initializing l3 gateway interface"