• Updated zoneinfo to 2015b.
• Fixed issue with parsing of tzstr on Python 2.7.x; tzstr will now be decoded
  if not a unicode type. gh #51 (lp:1331576), gh pr #55.
• Fix a parser issue where AM and PM tokens were showing up in fuzzy date
  stamps, triggering inappropriate errors. gh #56 (lp: 1428895), gh pr #63.
• Missing function "setcachsize" removed from zoneinfo all list by @ryanss,
  fixing an issue with wildcard imports of dateutil.zoneinfo. (gh pr #66).
• (PyPi only) Fix an issue with source distributions not including the test
  suite.