adding migration for grader option
adding grader option to titanic and health care
project model uses helper to grade
adding helper grader
fixing spacing in enum in Project modl
schema updae
grader sanitizes solution now
adding sample submission for health proj
adding healthcare solution
renaming to proper solution for mini challenge
project controller uses the new project score system
QA-ed grading helper
project model checks score using ProjectScore
fixing abbreviation
changing to grade_method
changing name for grade_method col in seed
misc fixes
adding todo
Merge pull request #1278 from teamleada/tristan_add_healthcare_grader

Tristan add healthcare grader