How do I do a fresh install of Google App Engine?

I've been using GAE for months now, but very recently I've had difficulty getting the latest release (1.3.4) to work for me. I'd like to remove GAE and start from scratch and reinstall it. However, it appears that deleting the googleappenginelauncher.app is not enough to completely remove it, because when I install the launcher again I see that it remembers the applications it was running previously (so at a minimum, there are some config files out there that I'm not removing properl开发者_如何学运维y). I'm new to Macs, so if there are other things I need to do besides deleting the .app, please let me know. Thanks for your help!

Config files are typically stored in ~/Library/Application Support, but the config files there shouldn't affect the behaviour of the launcher in ways that prevent it from working. Perhaps if you tell us what problems you're having, we can suggest a solution?