Restore GUI instructions once bugs are fixed

See #169 for bug details.

## Two interfaces, same result

I can be used as a GUI taskbar app or through the command line. My GUI app is great for updating EXIF on existing photos while my command line tools are great for setting up automated jobs.

Read the [instructions on building the GUI taskbar app](tree/master/app) for more information.

## See me in action

Updating EXIF of photos using the GUI taskbar app.

[![IMAGE ALT TEXT](http://img.youtube.com/vi/fF_jGCaMog0/0.jpg)](http://www.youtube.com/watch?v=fF_jGCaMog0 "Updating Photos Using GUI Taskbar App")

Importing and organizing photos from the command line.

[![IMAGE ALT TEXT](http://img.youtube.com/vi/oOvKpUO3LLs/0.jpg)](http://www.youtube.com/watch?v=oOvKpUO3LLs "Import Photos Using the Command Line")

Updating EXIF of photos from the command line.

[![IMAGE ALT TEXT](http://img.youtube.com/vi/7kqirQRQ--4/0.jpg)](http://www.youtube.com/watch?v=7kqirQRQ--4 "Updating Photos Using the Command Line")