@hackage Adaptive-Blaisorblade0.23

This is a Haskell (plus some extensions) implementation of a library for incremental computing. It closely follows the implementation in the nice POPL 2002 paper "Adaptive Functional Programming", by Umut Acar, Guy Blelloch and Bob Harper. This is a small fork of the original library named Adaptive, with the same interface but small adaptations to GHC 7.4.