Reload ourselves after purging disk allocation.

The purge process may set a test_name on the object in which case the
lookup_hash will have been modified.  To avoid concurrent modification
reload the object before setting our desired test_name.
Reload owner when reloading allocation.

Multiple alignment actions update their owners in the spawned process,
so promptly load the changes to either trigger immediate notification of
conflicts or prevent future changes from causing them.
Whitespace.
Remove unneeded variable.
Merge pull request #33 from tmooney/software_result_test_name_collision

Reload the owner after taking action on a disk allocation.