Application form updates

This PR is a rollup of several enhancements and updates based on user feedback. Pending changes from Abby's feedback which Ehud is reviewing as I open this.
Ahh, now I think I get what is going on with the readonly stuff above.  Basically, after they submit their application we let them see it but not edit it while it is being reviewed?  I think this is fine for now, but may actually add frustration to users rather than help them.  The only reason you would want to see what you submitted is to change it.  So, not being able to would be a source of frustration.  I think the better thing to do is after submission, show a new status on the Welcome page letting them know their app was received and they will be updated once a decision is made.  If they try to URL hack the form, have it redirect back to the Welcome page for users that already submitted.