major refactoring; created GameContext. Board is a shadow of its former self.
Merge branch 'master' of https://github.com/doogiedoogie/betterpress

Conflicts:
	src/betterpress/game/ai/Bot.java
	src/betterpress/game/ai/WordGetter.java
	src/betterpress/game/board/Board.java
	src/board/Board.java
	src/game/Board.java
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