Allow to re-obtain atomically with custom tokens (#71)

Allow custom lock tokens (#66)

More graceful nil-lock handling (#68)

Prepare release (#59)

Use final v9 (#57)

Use ticker instead of resetting timer (#52)

Fix compatibility with redis.v9 (#50)

Prepare v9 release (#47)

Allow custom deadlines, re-implement tests using stdlib (#35)

Increase test performance (#33)