ZPE 1.7.2 constants

Constants have existed in ZPE since 1.2.01 of BlackRabbit Script, and were actually added as one of the first defined features. They've always had one problem since the beginning. They were interpreted, not compiled. With ZPE 1.7.2 some 5 years later, constants are moved to the compiler where they should be. They no longer have a syntax of #x = 10 but now require the define keyword in front of them:

define Jamie = "Jamie Balfour"
print(Jamie)
print(Jamie & Jamie)

Further improvements will make the LAME evaluator faster than version 1.7.1's LAME evaluator that completely redesigned the way evaluation works.