v1.19.0

• mysql 8 support!
• utf8 enum values are supported now
• fix #1125, bootstrapping issue for TINYINT(1)
• fix #1145, nasty bug around SQL blacklist and columns starting with "begin"
• only resume bootstraps that are targeted at this client_id
• fixes for blacklists and heartbeats. Did I ever mention blacklists
  are a terrible idea?