removed user bio features
removed user bio path
moved sections code into their own controllers and folders so that its easy to work with
added section filter to assignments
removed row in form because causing layout troubles
added sections to assignment view
Merge branch 'merge_upstream' of github.com:presnick/runestone into pip
Revert "removed user bio path"

This reverts commit 50b0f21f07ae6bdc2035b3bdccf0f6bc8de129e4.
Revert "removed user bio features"

This reverts commit 632284f1cc7e07b417d14eeade2469ea7a2af6db.