0.8 Preview

The latest release has been quite a while ago, and this preview of 0.8, which is supposedly 'stable', brings with it a bunch of fixes and useful changes.

• Static IO class was replaced with a per-menu 'command queue'. This should be both more natural and more useful.
• The default items (help and quit) are now added by default (opt-out) instead of being wired to a strange condition
• More/better documentation
• A few fixes for rare bugs
• Various internal improvements