Update exercises to use grade level.
Merge branch 'master' of https://github.com/jsaun/CySpell
Merge branch 'master' of https://github.com/jsaun/CySpell
Merge branch 'master' of https://github.com/jsaun/CySpell
Merge branch 'master' of https://github.com/jsaun/CySpell

Conflicts:
	start.php
Merge branch 'master' of https://github.com/jsaun/CySpell

Conflicts:
	start.php
Made application base picture off grade
Merge branch 'master' of https://github.com/jsaun/CySpell
Merge branch 'master' of https://github.com/jsaun/CySpell