Add Debian 7 support

Thank you, for5min, for testing this out and verifying that the package
names are the same between Debian 7 and Ubuntu 12.04 LTS.
Add ability to specify listen port for sshd

This patch allows you to specify a non-standard port for sshd.
Merge pull request #34 from ghoneycutt/specify_port

Specify port
Release v3.2.0
Merge pull request #5 from ghoneycutt/master

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