Whitespace normalization
Changed courseId to courseid
whitespace normalization
Fixed course id overwriting bug
Fixed undefined reference warnings
Removed undefined reference when unrelated get variabl was set. Courses now show up correctly
Submitting a form now redirects user back to current page
Can now attach an image and a sample jar file
Added function to return the attachments of a post
Refactored. Implemented ability to add/modify image and jar attachments