=== v. 3 ===
* stop mapping real Boost version to a pretty printer version; add
  explicit code for every Boost version instead
* add support for Boost 1.52 and later (Boost.Unordered changed again)

=== v. 2 ===
* added support for use with Boost 1.48 and later (Boost.Unordered
  changed in that version)

=== v. 1 ===
* initial release
