Added legacy IE redirector & new dod consent modal

- Created conditional html for legacy IE that redirects to IE 10
upgrade page

- Removed old dodconsent.js call (waste of an HTTP call and
UI-blocking), now the page will still load in the background while the
users decides to push agree—this will further increase the perceived
page load time
Worked support controller code
Fixed invalid instructor name parsing
Added backlog student limit threshold warning