Filter against /Developer rather than against /Applications. This enables support for Xcodes that aren't in /Applications.  You can't pick such an Xcode yet, but if you set the path to its /Developer by force, it now works.
Default to the Xcode preferred by xcode-select rather than /Developer.
Enable selecting an Xcode.app in the /Developer-selection panel. AppKiDo will now automatically translate such a selection to the bundle's Contents/Developer directory.
Don't disable the path selection controls under any circumstance anymore. Further enables selecting any Xcode.
Removed the “/Developer or not /Developer?” matrixes and changed wording and size to reflect that the path selection is now the only way to choose an Xcode.