grammata version 0.1.6.0

CHANGES
- generalized expression evaluation
- functions can now return functions

PROBLEMS
- functions have dynamic scope (should be static)
grammata version 0.1.6.1

CHANGED
- semantically implemented imperative currying

PROBLEMS
- syntactically currying is not supported yet; partially applying functions only through temporary variables possible
grammata version 0.1.6.2

CHANGES
- partially application of functions works now.
grammata v0.1.6.10

CHANGES
- functions now have static scope

TODO
1) Implement procedures
2) change 'num' keyword in declaration to 'var'
grammata v0.1.6.11

CHANGED
- finally implemented higher order functions (function parameters, partial application, functions as function results)