Wrote function to extract expNum from QR code
Added verification dialog to Clear button
Fixed memory issue that caused simulator to crash
Merge pull request #458 from jaypoulz/jp447

Jp447 -- I FIXED THE ELUSIVE SUPER BUG
Merge remote-tracking branch 'upstream/master' into ms454
Working geolocation and dispatch_async progress dialogs
Merge pull request #459 from stowellm/ms454

Working Geolocation, Dispatch_Async Progress Dialogs, Clear Verification
Experiments browser now returns browser.
Merge remote-tracking branch 'upstream/master' into jp447
All memory management bugs are gone (for real this time).