Implemented MathFormula and evaluation
Skeleton structure for parsing expressions
Multiplication and Addition works for fitness parsing
Added symbol parsing, and a bit of refactoring
Added division and substraction operator parsing support
Don't try to parse empty symbols
Support for prefix + and - operators
Added support for parentheses
Added input/output operators for MathExpression
Added < and > operator for MathExpression
Added more operators, and integrated MathExpression into AIGameManager
Merge branch 'master' into fitness-parser
Merge branch 'master' into fitness-parser
Fixed indent
Merge pull request #30 from r0mai/fitness-parser

Fitness parser