trying to add typeclass for bools
replaced type classes Bool,Eq and Ord using their counterparts from AwesomePrelude
fixed Ord instance
Merge branch 'master' into bool-class
changes in master merged with experimental type-classy branch
added support for unary operators, implemented round as an example
added a few trigonometric operations, added newVarE for variable initialization with Expr
tests organized in a list, a new test for poligon drawing
fixed priorities of '#=' and '#' operators
fixed bug with code blocks generation introduced together with comment functionality
added rounding and float cast operations
T, P, L gcodes added, G and H accept Exprs
support for several variable banks, Common and System at this time
support for accessing variables in system tables with a symbolic name and integer index