[Checkins] [zopefoundation/zExceptions] ca1129: Enable travis caching of pip/eggs

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/zExceptions
  Commit: ca112921108461cc80f82f736f43f712da6c6ac8
      https://github.com/zopefoundation/zExceptions/commit/ca112921108461cc80f82f736f43f712da6c6ac8
  Author: Hanno Schlichting <hanno at hannosch.eu>
  Date:   2016-04-04 (Mon, 04 Apr 2016)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  Enable travis caching of pip/eggs