Merge branch 'dev' into master
- Finished student profiles
- Updated cppcheck tool to take additional flags
- Display visual tools in the feedback page if they exist
- Fixed bug in grammar_check tool that caused crashes on improperly escaped strings
- Removed student-AvatarFileName field from SQL table schema
- this column was made unnecessary by simply uploading a new profile image to the same directory/filename
- Added ability to upload PNG images as avatar photos
- Updated page footer