DAOS-VOL

Merge pull request #182 in HDF5VOL/daos-vol from ~JHENDERSON/daos-vol:master to master

* commit '36ff8a0bf3266b03cadd383de3e438473186b94a':
  Add assertion to check finalize dependencies in map creation
  Update VOL test submodule
  Fix dep_task dependency setup for map creation finalize task
  Fix map test to check for failure when deleting non-existent map key
  Minor error printout cleanups
  Schedule dset I/O end task even when dataset read/write_int do nothing
  Don't use DAOS_COND_PUNCH for object punches during H5Ldelete