Revision history for Algorithm-Diff-Callback

0.100   28.12.12
        * Rewrite to use keys instead of positional parameters.
        * Much cleanup.
        * Dzilify.

0.03    03.07.10
        * You can now remit a subroutine reference if you don't want.

0.02    08.05.10
        * Forgot the most important dependency.

0.01    05.05.10
        (5 + 5 = 10)
        * First version, done at 1AM.