Provide list{addresses,aliases,users,relocated} subcommands
The patch provides the list{addresses,aliases,users,relocated} subcommands to
the UI. All commands actually take the same path in the code and only one
query is run with different parameters for each case.
There are still two shortcomings:
  1. With alias domains, the output order is not as one might want it, e.g.
        foo@example.org
        bar@example.org
        foo@example.com
        bar@example.com
     when it should really be foo@ twice and then bar@ twice. I have not found
     a way to modify the SQL accordingly.
  2. The SELECT queries for Accounts, Alias and Relocated are hard-coded in
     common.py.
# use glob syntax.
syntax: glob
*~
*.py?
.*.swp
.swp
doc/build
build
debian/vmm
debian/*.log
debian/*.debhelper
debian/files
debian/*substvars
.pc
*.egg-info