[Checkins] [zopefoundation/zope.cachedescriptors] 2dfd3e: Add Travis badge.

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/zope.cachedescriptors
  Commit: 2dfd3e4fe1fcccf89873e8ef6c0681847ced3094
      https://github.com/zopefoundation/zope.cachedescriptors/commit/2dfd3e4fe1fcccf89873e8ef6c0681847ced3094
  Author: Tres Seaver <tseaver at palladion.com>
  Date:   2014-12-26 (Fri, 26 Dec 2014)

  Changed paths:
    M README.rst

  Log Message:
  -----------
  Add Travis badge.