Added tag 6.55 for changeset 40cc487dc2a0

Removed tag 6.55

REFACTOR Comment some code

FIX Make tests pass

Added tag 6.55 for changeset c5ff31c71ae2

FIX Remove newer ocaml dependenceis

Removed tag 6.55

Added tag 6.55 for changeset 9910301b551d

FIX Remove dependency on ocaml 4.12 and sqlite < 5.0.0

Removed tag 6.55

Added tag 6.55 for changeset e133f936986e

FIX Remove dependency on ocaml 5.1

FIX Include license and synopsis

Added tag 6.54 for changeset 5dd24bee4efa

FIX Typo in statistics

Added tag 6.53 for changeset 025c9d8842c7

ADD Statistics outputs

Added tag 6.52 for changeset f8369b660265

FIX Handle timezones correctly

Added tag 6.51 for changeset f1b12b851f34