cBulb now accepts custom arguments

cBulb now accepts custom arguments.  several parts of the script have
been refactored (tf function has been incorporated into mandelbulb
generation functions, global variables for mandelbulb generation have
become local variables in the mandelbulb generation functions)
Merge branch 'master' of https://github.com/matortheeternal/Mandelcraft

Conflicts:
	mandel.js