Add double tournament selection

Allow fitness to not be memo-ized (re-evaulate every generation)

Write more tests

Support for freezing state using Storable or something

Non-aligned crossover

Better POD for EA-n00bs ;)

Rewrite the slow stuff in C, doesn't that sound fun?

Profiling is difficult because many subs are anonymous. Come up with something
clever to fix this. I still want %REPLACEMENT and %SELECTION like they are
so folks can easily add extras from any BEGIN block
