change verbiage
update text, fix bad logic check
add markdown support to tutorial messages
account for users w/o speaker profiles
remove ridiculous redeundant truth assignment
add safe filter back into template
remove trailing whitespace
handle case where user is staff
remove visible check, artifact of copy/paste
Merge pull request #243 from PyCon/feature/234-tutorial-coms-modifications

[234] Tutorial Instructor/Attendee Communications Modifications