worked on basic real types
fixed Ellipse+Circle
updated traits Composed, ColoredElement, Screen
Re-ordered BasicInt & BasicReal functions for more logical working with it
Merge branch 'develop-SN' into develop-MW
Merge remote-tracking branch 'origin/develop-MW' into develop-JK
using BigInteger now and writing constructors and math functions (WIP)
more work done on BasicReal and written first test
Merge remote-tracking branch 'origin/develop-MW' into develop-JK
removed references to Number due to compiler bug, changed functions slightly
updated Shape, ColoredShape
Merge remote-tracking branch 'origin/develop-MW' into develop-JK
fixed build
added some small BasicReal tests
updated graphics + interaction
added basicReal addition and wrote according tests
updated PointerInput
added more tests as well as accurate toString and Subtraction
Merge remote-tracking branch 'origin/develop-MW' into develop-JK
started adding Kotlin compiler - available, but not compiling, reference barf