So, I opened up the files in data.dat and got to work. Here's what it contains...
Full Changelist:
* Most prices reduced, so you're not entirely screwed over if you get to the only shop in a sector and you're too poor
* All items have a chance to appear in the store
** This also means that finding what you want is going to be incredibly hard. Better pray to the RNG gods
* Buffed a few of the "low level" items so that they're dangerous, but this might get nerfed later
* Due to modified rarity values, enemy ships can spawn with absolutely any weapon in the game
* Crystal weapons, and crystal crew members, are available to buy
* Recruiting people from stores only costs 10 scrap now, we'll justify it by saying that they're obviously SO EAGER to join your crew, they're not in it for the money
* Slug crew are also available to buy
* Because bombs are... well, bombs, they no longer take up missiles.
* All missiles have reduced power use, bar 1 or 2
* Anti-bio beam has been buffed, I think
* Most weapons now have a slightly higher chance for breaching and causing fires. This ups the stakes in combat
* Enemy ships can now spawn with crystal crew members
* For noobs, the artemis launcher on the starting kestrel has been highly buffed. Gets even more buffed in the next update
* A surprise, for those that want to look for it

Hope you like the sound of it here's the download;
http://www.mediafire.com/?rjyj5sdq96fffti