Update dev_4_4 submodules

Repository: openmicroscopy/snoopys-sandbox
Already up-to-date.

Repository: openmicroscopy/snoopys-sandbox-2
Updating 33abb18..6aeac36
Merged PRs (fast-forward):
  # PR 2 sbesson 'Add new file'

Generated by SCC-self-merge#190 (http://hudson.openmicroscopy.org.uk/job/SCC-self-merge/190/)