Cabal revisions of hash-tree-0.1.0

Hackage metadata revisions edit the .cabal file after upload; each diff below is one revision.

 cabal-version: >=1.10 name:          hash-tree version:       0.1.0+x-revision: 1 license:       BSD3 license-file:  LICENSE maintainer:    Kazu Yamamoto <kazu@iij.ad.jp>         base >=4 && <5,         bytestring,         containers,-        crypton >=1.1.0 && <1.2,+        crypton >=1.1.0 && <2.1,         ram  test-suite spec