Add a script to control Trac via XMLRPC

A simple XMLRPC client that will allow common operations, such as
marking a ticket as committed, uploaded, etc.  Designed to be called
from VCS hooks or daupload and friends
Fallback to the empty string if $HOME is unset

If $HOME is unset, fall back to the empty string, which
basically means looking in the root of the filesystem.
This can be considered a feature
Add "test" command to trac-remote

Add a "test" command to test the connection to the server
Use os.path.expanduser() for default credentials

Use os.path.expanduser() rather than relying on $HOME for the
default credentials file.
Do not pass -I.svn to debuild

Do not pass -I.svn to debuild, instead just pass -I, because our
build server is no longer running Etch