adding deadline_in_hours to projects
updating proj deadline to use hours if less than 1 day
making the titanic_boot smaller to save bandwidth
adding the project reset methods to users
Change project submissions to be file_submission_contents
Add models for file_submission_contents and image + pdf + csv submissions
Rename code submissions to code submission contents
Rename code submission to code_submission_content
Change code submissions to be associated with project_submissions
Rename submissions to project_scores
Add evaluation models
Move code submission content + evaluation into correct folder
Move evaluation outside the evaluations folder
Annotate submission_cotnents models
Create project submissions
Add classes for pdf and csv submissions
Rename submissions to project_scores
Annotate lots of models related to submissions
Projects have many project_scores
Move project_submission class to submission_contents