RoiSet.run_exports and .get_export_product_accessors no longer take a channel directly, but rather pull these from parameters of individual patch products

Requirements for building on cluster

See merge request rhodes/model_server!79

Rois were not being filtered; label mask still has > 1000 unique values, would be nice to pass min. size straight to this call

New accessors

See merge request rhodes/model_server!78

Have accesss to subblocks but need to iterate and concatenate without scrambling order of channels, etc.

No longer pop accessors by default in pipeline

See merge request rhodes/model_server!77

Order-of-operations bug using walrus operator

See merge request rhodes/model_server!76

Pipeline interm accessors are now returned in a dict with keys indicating their step, instead of a list

Separated out accessor objects from their info dictionary, to prevent data conversion issues with pandas

Session has a watch directory for configuration files, which ilastik router interprets as being the root for ilastik files as well.  This is changeable from API.