added a new view which lists all completed exams, to allow an admin to view results
added a permission (view_sittings) which allows users with that permission to view completed quizzes of other users - could be used for marking
removed unused class from admin, added in filter for quiz marking list to filter by user or quiz title
removed a check to see if matching user or quiz existed when filtering completed exams on the marking page - just shows an empty set if none found
template changed to show quiz score as percentage rather than score
added a new app called essay, which allows essay style questions
small code cleanup
starting on new field in Sitting model to store all user answers in a sitting. This is necessary for essay type questions as they will need to be manually marked.
add_user_answer added to the sitting model
big commit, added a new method to questions to return guess as string, added sitting method to return questions with players guess for each
added Essay question to admin, changed templates so they dont show
previous question if it was an essay question since it is not marked
automatically, updated sitting_detail view to show the answers that the
user gave for each question. next up - allow teacher to mark questions
in this view, resulting in updated score etc
removing commented out line
finalised essay question type, added it to admin and readme, adjusted
sitting detail view to allow a marker to decide whether a question is
correct, added supporting methods to the sitting model
code cleanup and extra tests
lining up a bracker in urls.py
added travis file