Building a real number exponentiation function
Still fixing conflicts on computers
Merge branch 'master' of https://github.com/Al153/Programming

Conflicts:
	Python/Cryptography/playfair.py
	Python/Interpreters and compilers/Pyfth/stdlib.pyfth
	Python/Interpreters and compilers/Pyfth/test area.pyfth

Still trying to patch up differences between PCs