third derviative sign got the moving parabola added back in
Merge branch 'development' of github.com:ASCTech/mooculus into development

Conflicts:
	public/khan-exercises/exercises/thirdDerivativeSign.html
Merge branch 'development' of github.com:ASCTech/mooculus into development
Merge branch 'development' of github.com:ASCTech/mooculus into development
Merge branch 'development' of github.com:ASCTech/mooculus into development
Merge branch 'development' of github.com:ASCTech/mooculus into development
Merge branch 'development' of github.com:ASCTech/mooculus into development
Removed almost all MathJax in Graphie elements while we work on a patch.