Add web based python shell to Melange. It is accessible via http://host/admin/shell url and requires developer rights. Shell project is part of google-app-engine-samples. This commit moves django configuration from main.py to separate gae_django.py module. Shell project has been modified in order to work correctly with django 1.0+. Build script has been updated and includes shell folder and gae_django.py file. http://code.google.com/p/google-app-engine-samples/source/browse/trunk/shell/

class WKTAdaptor(object):
    """
    This provides an adaptor for Geometries sent to the
    MySQL and Oracle database backends.
    """
    def __init__(self, geom):
        self.wkt = geom.wkt
        self.srid = geom.srid

    def __eq__(self, other):
        return self.wkt == other.wkt and self.srid == other.srid 

    def __str__(self):
        return self.wkt