Better documentation, new functionality

Added a reference table to all implemented functions and operators. Added functions R, binary j and J, unary k and K, and ?. Added operators Z and O. Changed functionality of some existing stuff, most notably x, @, c and \. Also bugfixes.

Bugfixes and consistency improvement

Many bugs, mainly in operators, have been fixed. All values now have arguments, so the _ operator is much easier to use. Integers are used in combinatorial functions, and in division when possible. Argument order is more consistent in general.

No implicit output

Removed implicit output, added some new functions.

Evaluation mode bugfix.

v0.1.1

Fixed lazy evaluation, implemented print suppress.

First release

Implemented I/O functions and iteration.

Also split parsing and pretty-printing to a separate file.