Added additional metrics data

Now tracking number of towns and citizens, and it should produce a fancy
pie chart of the number of towns in each town rank but there is a
database counting issue so this is on hold until later.
Fixed MySQL bugs fixes #1

Had to change a boolean from Town class to an integer for inserts.
Made some logic changes that shouldn't have worked with SQLite but
somehow did.
Made some quick debug output message changes since they were glaring
errors.
Added Metric for which DB used

Just wanting to track which database is being used on the servers out
there, now that MySQL is somewhat functional.
Minor officer command edits

Making it slightly prettier
v0.20b Release reference

Pushed the new binary to bukkit only moments ago.  Decided to make this
a minor release (the 'b' part) since this does not accomplish the goals
set out for v0.21.

Next release will definitely be an expansion of World Guard
functionality.