----------------
* Added ``update`` command to ``checkout`` script.
[fschulze]
* Added ``status`` command to ``checkout`` script.
[fschulze]
* Added status flag to ``list`` command to indicate packages with wrong URL.
[fschulze]
* If the working copy is clean, then checkout automatically switches svn
packages.
[fschulze]
* Skip on checkout errors during buildout, so the develop script is generated
and you get a chance to inspect and fix the problems.
[fschulze]
* Check remote url and stop checkout if it differs.
[fschulze]
* Added various options to the ``list`` command.
[fschulze]
* Instead of the ``checkout`` script, there is now a ``develop`` script with
various commands.
[fschulze]