Compiler: 'import math' globally
Main: accept config options also as parameters
Choose angular system to work with (degrees/radians)
Merge pull request #41 from plepe/choose-angular-system

Choose angular system to work with (degrees/radians)
Merge branch 'master' into 5-josm-eval-functions
Eval: for tests specify OUT_ROUND -> round result to 5 precision
Eval: update docu with type 'angle'
Eval: trigonometric functions

- sin, cos, tan
- asin, acos, atan, atan2
- sinh, cosh, tanh