Bug: No rdefs for SPW import via cli

[wmoore]

If we import SPW data via the command line, no rendering defs are generated, meaning that non-owners in private or read-only groups cannot see thumbnails.

I believe this bug exists for dev_4_4 and develop.

E.g. Import SPW data as a regular member of a private group:

$ omero import ~/Documents/biology-data/SPW/mias-frans/siRNA_PRIM1_03102008/
Using session eed7e559-ddb7-48aa-924a-3b3428765707 (will@localhost:4064). Idle timeout: 10.0 min. Current group: private
2013-03-27 14:27:25,730 0          [      main] INFO          ome.formats.importer.ImportConfig  - OMERO Version: 5.0.0-alpha1-DEV-ice34
...

Then try to get the thumbnail as 'root'

...
conn.SERVICE_OPTS.setOmeroGroup(-1)
i = conn.getObject("Image", 24)
jpeg = i.renderImage(None, None)
jpeg.show()    # PIL Image shown
tb = i.getThumbnail()


WARNING:omero.gateway:ReadOnlyGroupSecurityViolation on <class 'omero.gateway.OmeroGatewaySafeCallWrapper'> to <83c7cf1a-faa7-4975-89c8-e4328bbe1543omero.api.ThumbnailStore> getThumbnail((object #0 (::omero::RInt)
{
    _val = 64
}, object #0 (::omero::RInt)
{
    _val = 64
}, <ServiceOptsDict: {'omero.session.uuid': '43ad1d91-0f0d-43dc-8bad-1b2695cb6702', 'omero.group': '5', 'omero.client.uuid': '17c468ea-b24d-44a0-92e7-3474ce6cc066'}>), {})
Traceback (most recent call last):
  File "/Users/will/Desktop/OMERO/dist/lib/python/omero/gateway/__init__.py", line 3455, in __call__
    return self.f(*args, **kwargs)
  File "/Users/will/Desktop/OMERO/dist/lib/python/omero_api_ThumbnailStore_ice.py", line 179, in getThumbnail
    return _M_omero.api.ThumbnailStore._op_getThumbnail.invoke(self, ((sizeX, sizeY), _ctx))
ReadOnlyGroupSecurityViolation: exception ::omero::ReadOnlyGroupSecurityViolation
{
    serverStackTrace = ome.conditions.ReadOnlyGroupSecurityViolation: Cannot link to ome.model.core.Pixels:Id_23
Current user (root) is an admin or the owner of
the private group (private=rw----). It is not allowed to
link to users' data.
	at ome.security.basic.OmeroInterceptor.evaluateLinkages(OmeroInterceptor.java:464)
	at ome.security.basic.OmeroInterceptor.onSave(OmeroInterceptor.java:154)
......
	at IceInternal.ThreadPool$EventHandlerThread.run(ThreadPool.java:643)
	at java.lang.Thread.run(Thread.java:680)

    serverExceptionClass = ome.conditions.ReadOnlyGroupSecurityViolation
    message = Cannot link to ome.model.core.Pixels:Id_23
Current user (root) is an admin or the owner of
the private group (private=rw----). It is not allowed to
link to users' data.
}