Stylistic fixing of code

Adding spaces to function arguments, deleting newlines, that sort of
thing
Cleanup of file structure

Moving all sorts of things around
README

Updated the README and got rid of the old class-related ones
Deleting old stuff

I'm pretty sure this code was a mistake when I committed it. God damn I
had no fucking idea how to use git then...
Moved edge detection code into separate source file

Easier to deal with this way
make clean deletes stray image files
Stylistic cleanup of source files

geometry.{cpp,h}
parse.{cpp,h}
light.{cpp,h}
Stylistic things in raytrace.{cpp,h}
Merge branch 'refactor' of github.com:neunenak/Raytracer into refactor

Conflicts:
	Makefile
	main.cpp