add(RULES): Add RULES.md
fix(Game.js): Fix game messages.
Make hero safer
feature(Game, Hero): Upload new game logic (healing, extra direct damage)
fix(README): Decrease image size
feature(helpers, hero): Add "The Priest", add descriptions of starting "personalities"
fix(helpers.js): Make findNearestTeamMember look for friends, not enemies.
docs(RULES): Update RULES.md
docs(RULES): Update RULES.md