Target priority for Dart: 3 -> 4 (Scorcher is about 3.2 and Slasher is about 3.7).
Merge branch 'master' into balance
Balance stuff for testing.

Dagger:
 * Cost 85 -> 90

Mace:
 * Speed 2.2 -> 2.1
 * Health 1200 -> 1100

Wolverine:
 * Can fire backwards.
 * Slightly lower ballistic arc height.