Update to 1.0.0.1

changes:
1.0.0.1
  - reChunkIn: Fix insufficient laziness
      The redundant case for [y] was always forcing one more input chunk to
      be evaluated than necessary to generate an output chunk.
      Signed-off-by: Anders Kaseorg <andersk@mit.edu>

  - typo of "decoding"
  - Simplify reChunkWith
  - Add lazy benchmarks
  - Improve encoding performance by 5%
  - Improve decodeLenient performance by 50%

1.0.0.0
  - Refactor the testsuite a little
  - Add .Lazy variants of the two Base64 modules

0.1.2.0
  - Ensure that joinWith really does what it claims.

0.1.1.3
  - Bump version constraint on bytestring
  - trustworthy flags; fix BM

0.1.1.1
  - Fix performance regression in encoding.
      The encoding table wasn't being let-floated when URL encoding support was
      added, and so it was being regenerated on every call, with catastrophic
      performance consequences (600x slowdown for small inputs on my machine).