quark 0.8.0: everything that changed

The full notes for this version are its short notes: that was all that was written then.

Play vs Bots (main menu): pick a mode, map, difficulty, and how many enemy and teammate bots. Runs a private local server, no port forwarding needed.
Four difficulties:
- Beginner: slow to react (0.7 s), shaky aim, rifle only.
- Intermediate: 0.4 s reactions, strafes while fighting, picks shotgun/rifle by range.
- Advanced: 0.25 s reactions, bunny hops, dashes, uses rockets (aimed at your feet), crossbow and sniper, leads moving targets.
- Expert: 0.15 s reactions, tight aim, fast turning.
Bots play every mode: they capture the hill, push or block the payload, carry and plant the bomb (and keep going for the site while shooting), defuse, and run races.
Bots find their way around with a navigation graph built automatically from the map's blocks (they plan jumps between platforms), so every map, including new ones, supports bots.
Bots use exactly the same movement and weapon code as players (no cheating), at any server tick rate.

Team modes: when one team has fewer human players, an intermediate bot joins that team automatically, and leaves when another human evens it out. A bot also gives up its slot when a human joins a full server.
Players can vote: pause menu -> VOTE BOTS ON / OFF, or vote a bot difficulty. Press F1 (yes) / F2 (no). Majority of human players decides; votes last 30 s.
Hosting: "Balance uneven teams with bots" toggle in the Host Game menu.

quark_server --bots N [--allies N] [--botskill 0-3] [--nobalance]; console commands addbot [a|b] [skill] and kickbots.