partial changes to progress page
Merge branch 'pip' of https://github.com/nickdotreid/runestone into nickdotreid-pip
added weight and possible points to assignmet_type
missed a comma
added skeleton for assignment_types grades
made student_grade only work with an assignment type
updated grade calculating logic
implemented current points function
added other point calcuations
 and entered html
added grade sclae to index.html