Work
Change to use IntMaps
Misc clean up
Merge branch 'master' into expr

Conflicts:
	haskell/src/Brainfuck/Compile.hs
	haskell/src/Brainfuck/Optimization/Assignment.hs
Delete old code
Merge branch 'master' into expr
Fix loads of bugs
Clean up and make ListZipper independent of Brainfuck
Merge branch 'master' into expr
Clean up and fix dependencies in cabal
Merge branch 'master' into expr
Futher work
Ignore profiler output
Merge branch 'master' into expr
Fix more bugs
Try another Expr representation
Work