Started challenges page in ejs while referencing and tweaking.
Merge branch 'master' of https://www.github.com/glimmerlabs/MathOverImages

Conflicts:
	Site/views/view-challenge.ejs
Remove unnecessary tutorial file.
Remove unnecessary tutorial file.
Remove unnecessary tutorial file.
Slight update to view-challenge.
Add default to views/Makefile.
Merge branch 'master' of https://www.github.com/glimmerlabs/MathOverImages