Merge pull request #22 from chamankang/develop

add features for quantum api server setup
add enable_multi_host flag to config files
Merge pull request #23 from hyunsun/multi_host

add enable_multi_host flag to config files
make external bridge name to blank so that l3-agent starts successfully
set bridge netfilter disabled and ip_forward enabled
Merge pull request #24 from hyunsun/config

set external bridge name to "" so that l3_agent starts successfully
set bridge netfilter disabled and ip_forward enabled
Merge remote-tracking branch 'origin/sysctl' into sysctl
Merge pull request #25 from hyunsun/sysctl

set bridge netfilter disabled and ip forward enabled in agents node
set rabbit/mysql server on compute node, too
Merge pull request #27 from hyunsun/endpoints

set rabbitmq/mysql server ip properly