Log Message:
Update to 0.9.13

* Include lang/python/egg.mk.

Changelog:
version 0.9.13
 Bugfixes
 * default_encoding config option allows user to specify a default encoding othe
r than ASCII (was a bug for some uses, namely cron jobs).
 * Appropriate intermediate directories are created during authentication token 
storage.
 * Catch previously uncaught exception when webbrowser does not find a default o
r specified browser.
 * Deletion of recurring calendar events does not cause AttributeError.
 * Deletion of recurring calendar events with --yes flag only deletes all events
 if --date is not specified.
 * File extensions for Picasa are case insensitive.