Add *round_floor to round numbers down

[dfabulich]

You can add 0.5 first to round to the nearest integer.

[playdeezgames]

Let me propose an alternative:

rather than cluttering up the command namespace, why not expose a subset of the functionality of Javascripts Math object?

Perhaps limit this to the single parameter functions: abs acos asin atan ceil cos exp floor log round sin sqrt tan

and expose this through a single math command:

*temp test
*set test 3
...
*set test /2
*math floor test

you could give some more non-programmer friendly names to the operations, as well.

Just some thoughts.

[playdeezgames]

I put a math command into my fork for your review, similar to the way I outlined it here.