minor, provide _get_as_of_then()
minor, provide simple file based putter command
minor, provide a simple getter command
minor, allow mutti stores to be opened read-only
Merge branch 'backend/dsk'

* backend/dsk:
  minor, provide _get_as_of_then()
Merge branch 'tool/mutti'

* tool/mutti:
  minor, allow mutti stores to be opened read-only
  minor, provide a simple getter command
  minor, provide simple file based putter command
minor, globally support sesquis and change dimension order in bitmps
test, adapt tests to changed echs_bitmp_t layout
fix, PEBKAC, make sure we supersede existing values
Merge branch 'backend/berkdb'

* backend/berkdb:
  fix, PEBKAC, make sure we supersede existing values
  test, adapt tests to changed echs_bitmp_t layout
  minor, globally support sesquis and change dimension order in bitmps
minor, support different storages in mutti(1) put
Merge branch 'tool/mutti'

* tool/mutti:
  minor, support different storages in mutti(1) put
test, tentatively disable dsk tests
Merge branch 'backend/dsk'

* backend/dsk:
  test, tentatively disable dsk tests