Fix regression for GTK2 activities caused by 2f2b2d2

The issue was caused by importing from activityfactory which caused GObject to be imported. This conflicts with GTK2. (Reported by James Cameron)
The idea is that we should create the sugar profile's activity root if it doesn't exist yet, when running outside Sugar.

bin/sugar-activity

@@ -35,11 +35,12 @@ DBusGMainLoop(set_as_default=True)
 from sugar3.activity import activityhandle
 from sugar3 import config
 from sugar3.bundle.activitybundle import ActivityBundle
-from sugar3.activity.activityfactory import get_environment
 from sugar3 import logger
 
 from sugar3.bundle.bundle import MalformedBundleException
 
+from distutils.dir_util import mkpath
+
 def create_activity_instance(constructor, handle):
     activity = constructor(handle)
     activity.show()
@@ -124,7 +125,22 @@ def main():
             activity_class = bundle.get_command().split(" ")[1]
 
     if 'SUGAR_VERSION' not in os.environ:
-        environ = get_environment(bundle)
+        profile_id = os.environ.get('SUGAR_PROFILE', 'default')
+        home_dir = os.environ.get('SUGAR_HOME', os.path.expanduser('~/.sugar'))
+        base = os.path.join(home_dir, profile_id)
+        activity_root = os.path.join(base, bundle.get_bundle_id())
+
+        instance_dir = os.path.join(activity_root, 'instance')
+        mkpath(instance_dir)
+
+        data_dir = os.path.join(activity_root, 'data')
+        mkpath(data_dir)
+
+        tmp_dir = os.path.join(activity_root, 'tmp')
+        mkpath(tmp_dir)
+
+        os.environ['SUGAR_ACTIVITY_ROOT'] = activity_root
+        os.environ['SUGAR_BUNDLE_PATH'] = bundle.get_path()
 
     os.environ['SUGAR_BUNDLE_ID'] = bundle.get_bundle_id()
     os.environ['SUGAR_BUNDLE_NAME'] = bundle.get_name()