Fix typos in dr_agent.py

This patch fixes a typo in neutron/agent/dr_agent.py. And it also adds
the i18n support for the debug log.

Change-Id: I811a0489888ca6cebc1c5eee21f5b5cd8d681f3b
Signed-off-by: Taku Fukushima <tfukushima@midokura.com>
Comment out the logic for the RPCs

This patch comments the logic to retrieve advertised information of
peers and the networks.

Change-Id: Ib1658867598d085fc55b97afbde5140a323ce74f
Signed-off-by: Taku Fukushima <tfukushima@midokura.com>
Add router_id in dr_agent.ini

This patch modifies the way to specify the BGP identifier of the BGP
speaker puting it in the configuration file, dr_agent.ini.

Change-Id: Iafd4edde40c5c34dd2c1ebad28ca6417d3001de1
Signed-off-by: Taku Fukushima <tfukushima@midokura.com>