Update to work on SDK 1.7.6
Force use of devappserver2 by putting a file in the root of your project called force_devappserver.py
The file should contain a single variable:

devappsever_ver = 1 or 2

manage.py runserver, test and remote shell commands work on both devappserver1/2
manage.py shell works on devappserver1 but not devappserver2.
Other commands have not been tested.