Handle a case gateway device has multiple IPs in no_proxy generation
Merge git-branch-show.sh and git-pull-all.sh to a single command
Stop quantum-ns-metadata-proxy to ensure netns can be removed.
Add a wrapper script for Trema Sliceable Switch
Fix the directory of Trema Sliceable Switch
devstack-cleaner.sh: Remove accrc directory

Also displays quantum agents to be removed.
Kill quantum-ns-metadata-proxy only if it exists

Correct rabbitmq service name.
Add devstack log cleaner
Add a sample script of sqlalchemy test

It can be loaded by "ipython -i alchemy-test"
Set PROMPT_DIRTRIM to 3 in .bashrc