Update .gitignore

These get in the way when brining in changes
Damaged gauntlet gives a more granular adjustment for infiltration time based
on its damage.
Updated version #
spies take a break after teleporting home.
Removed any chance of inter-alliance voting
Some fixes to the send_ship_types API call
Improved setup instructions and scripts
Sorted out gitignore
Improve unsustainable message to hopefully make it clearer.
Add a blind trash_messages_where allowing the server to select and
delete messages in a single call.  The goal is to make deleting parliament,
attack, or other types of messages easier and faster, with a reduced load
on the server.
Replace the message-update code with direct-to-database updating for
performance reasons.  Also change the return to better match the ideas
behind the trash_messages and archive_messages calls so that the UI can
use the ID list to remove stuff from its display directly, should the UI
ever start using this call.
Comma-fy the scow waste.

Found out that when a ship is sent to itself, the after method modifier
for send doesn't trigger - beanstalk processes it too fast.  Introduce a
minimum 1-second timer for sending ships, that way the after method modifier
can trigger, setting the payload, before the beanstalk process picks it up.
Observatory now passes 30 probes per page
Create an emptyscow option for sending scows back home without any waste.
Resolves issue #56.
Sender doesn't need to recalc messages under any circumstances
since the sender's stats aren't based on what they have sent.  This
should eliminate quite a number of completely unnecessary database
calls.
Reduce database overhead by updating the messages' status directly in
the database instead of one-at-a-time.  Also remove repeated message recalcs,
reserving them for the end of archiving and trashing messages.
Typo in POD formatting.
Provide an API to retrieve the highest embassy level (possibly not counting
a given body_id) so that we can determine if an alliance leader could possibly
downgrade or demolish a given embassy.
Create a couple of short-cut methods to make testing via one-liners easier:
Lacuna->db->empire(name_or_id) and Lacuna->db->building(id).  This may
also be useful for new scripts, whether AI or otherwise.
Return the building ID for the empire's favourite embassy (if any) as part
of the empire's status.