utopiabound/grpn v1.5.1

add functions AND, OR and XOR; add constants e, i

on GitHub

make Help dialog mono-spaced

Make font in help dialog mono-spaced since it relies on spaces
for formatting.

add e and i as type-able constants

This adds 'e' and 'i' as type-able constants.

add bit-wise AND OR XOR operators

Adds bit-wise operators for Real numbers.
AND with "and" and '&'
OR with "or" and '|'
XOR with "xor" but not using '^' as it's used by pow()