Updates for tools/info.sh

* Handle local.conf localrc section
* remove blank lines
* rather than removing password lines, just remove the password itself to at
  least show which password vars have been set

Change-Id: Ieca9baaf03e53b23e336944ad0ed2581c9bee460
Update samples

* Skip commands for services that are not started in local.sh
* Rename localrc to local.conf

Change-Id: Ida3a8cc836d56db94da4a133fbeb81c7f5fc5f26
Merge "Update samples"
Merge "Updates for tools/info.sh"
Merge branch 'master' of github.com:openstack-dev/devstack