Merge pull request #1 from r4z0rw0lf/gh-pages

math now works, needs a bit of cleanup though.
fixed indentation issues & removed placeholder from the expression box.
fixed indentation issues & removed placeholder from the expression box. (2)
fixed indentation issues & removed placeholder from the expression box. (3)
fixed expression box clearing on exceptions
fixxxx
more fixes
Merge remote-tracking branch 'upstream/gh-pages' into gh-pages

Conflicts:
	scripts/advmath.js