Chadwick tools 0.6.4 released

We have released version 0.6.4 of the Chadwick tools for manipulating play-by-play and game-level data.

This release adds support for the new umpire and manager review flags (/UREV and /MREV) which appear in the 2014 Retrosheet release, as well as improving support for courtesy runners and player re-entry.

As usual, full source code is available as well as pre-built binaries for Windows users.