0.2.0

Added

• SubmissionStoreConformanceTestCase (S01–S08): the kit every Submission\SubmissionStoreInterface
  implementation runs (createStore(), supportsPurge() for the purge() of indexnowkit/history): S01 record and
  read back, S02 newest first, S03 host filter, S04 status filter (skipped results are records), S05 lastFor() after
  two records of one URL, S06 limit, S07 several URLs of one Result stay one record, S08 empty store and purge().
  The ids are frozen with C01–C22, A01–A21 and H01–H06.
• ReadmeAssertions::FAMILY_COMMANDS knows indexnow:history, indexnow:status, indexnow/history, indexnow/status.

Changed

• Requires indexnowkit/core ^0.9.