Open Alpha 3

As promised, the Protector Defender, Dreadnought Guard, Executor Specialist, and Decel Binder Supporter have been added.

Unfortunately, some things remain unpolished and unfinished within the first subclasses, so fixing that will be the first thing done before Alpha 4's content.

There may be a polish update ("3.1") or it may just be included in 4.

Future plans with no definite release timing:

- Add another subclass for each class. (The first ones will probably be the Pioneer Vanguard and Lord Guard.)

- Flesh out faction mechanics.

- Flesh out out-of-combat mechanics.

- Expand upon resting.

- Improve consistency of style.

- More gear and NPCs.

- Additional talents.