Version 3.6.0

• Add $unique parameter to function signatures.
• Add a cast-to-int for extra safety before forming new DateTime object.
• Add a hook allowing exceptions for consistently failing recurring actions.
• Add action priorities.
• Add init hook.
• Always raise the time limit.
• Bump minimatch from 3.0.4 to 3.0.8.
• Bump yaml from 2.2.1 to 2.2.2.
• Defensive coding relating to gaps in declared schedule types.
• Do not process an action if it cannot be set to in-progress.
• Filter view labels (status names) should be translatable | #919.
• Fix WPCLI progress messages.
• Improve data-store initialization flow.
• Improve error handling across all supported PHP versions.
• Improve logic for flushing the runtime cache.
• Support exclusion of multiple groups.
• Update lint-staged and Node/NPM requirements.
• add CLI clean command.
• add CLI exclude-group filter.
• exclude past-due from list table all filter count.
• throwing an exception if as_schedule_recurring_action interval param is not of type integer.