Req: Additional functions for the Correction Wizard

[photoken]

The Correction Wizard offers good features for improving an image, and a few more functions would help take care of the most common photo problems:

1. Lab mode gamma correction.
2. Straighten and crop.
3. Rectify.

Also, it's not immediately obvious that there are available corrections -- the "Previous" and "Next" buttons are subtle and don't show which corrections are available. If the corrections each had a tab in the dialog, that would help. Users could then easily pick and choose which corrections to apply, and the "Previous" and "Next" buttons could still work as they now do....