Merge pull request #456 from stowellm/ms454

Fixed some memory problems in Manual, iapi, and objects
Working on memory issues.
Merge remote-tracking branch 'upstream/master' into jp447
""Double quotes for extra emphasis""
Merge pull request #457 from stowellm/ms454

Finished implementation of dispatch_asyncs, fixed ZXing's memory issues
Wrote function to extract expNum from QR code
Added verification dialog to Clear button
I FIXED THE ELUSIVE SUPER BUG
Fixed grabstring conflict
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