Formatting fix for README
Merge pull request #1 from DrMeers/master

Formatting fix for README
Add a cancel button on test discovery failure, so we can cleanly abort.
Fixed #3 -- Improved error checking for a common problem running under Ubuntu.
Corrected the Ubuntu identification logic after testing on an actual Ubuntu box.
Merge pull request #5 from stephenmcd/master

Add a cancel button on test discovery failure, so we can cleanly abort
Added some helpful people who have reported issues and provided patches.
Cleaned up line lengths.
Fixed #8 -- Cleaned up the exception on the discovery dialog on cancel.

Includes some UI style guide changes to the layout of dialogs,
and corrects the cancel button on the FailedTest dialog.
Handle output in stderr gracefully when discovering tests
Rename requirements file and delete pytest
Update error handling dialog and remove error rendering method