Allowing some messages to always be flushed from FingersCrossedHandler
Merge pull request #373 from DavidMikeSimon/fingers_crossed_passthru_level

Allowing some messages to always be flushed from FingersCrossedHandler
Add years to the copyright notice

A copyright notice should include the year of first publication. Since
changes have been made to the initial work since then, it’s common
usage to also document the years in between.

The dates have been figured out from the Git repository.
Merge pull request #374 from DavidPrevot/copyright

Add years to the copyright notice
Update target version and changelog
CS fixes