Add dump of current schema

This doesn't contain any database creation, ownership, roles or bootstrap content.
Add magdb core python library

Hastily santised for release, untested.
Add example magdb.conf

May not contain all required fields, you have been warned.
Fix usage of default domain
Add tools for creating and maintaining systems
Add magdb integrity checking tools

* magdbCheckDNS - Check forward and reverse lookups of magdb IPs and hosts
* magdbCheckDig - Check differences between nameserver zones and magdb
* magdbCheckPakiti - Check difference between hosts in magdb and pakit2
* magdbPingSweep - Record all pingable addresses in subnets known to magdb
Merge pull request #1 from jrha/master

Release initial bundle of sanitised tools