Data Entry and Multi-Platform Madness

- Incremented version to 1.7.0, merging the changelog from 1.6.1 in the readme.
- Added a catalog of metadata for all stable mods available, to associate with md5 hashes of mod files. See lib/moddb.py for the standalone scraper app that collects new info from the forum.
- Added a scrollbar and right-click clipboard menu to the description text area.
- Enforced line-endings for various filetypes upon checkin/checkout.
- Moved *.bak files to GMM/backup/ so users can more easily delete them to avoid corruption when they upgrade FTL.
- Trivially dumbed down code in a couple places to support Python 2.6, which comes stock on many systems.
- Added modman.command, a launcher script for Mac/Linux users that ensures there will always be a visible terminal (chmod is still necessary for it... or a tar archive).