[Checkins] [zopefoundation/zope.app.locales] 3f7e71: Added in the path filtering function

[GitHub]

  Branch: refs/heads/py3
  Home:   https://github.com/zopefoundation/zope.app.locales
  Commit: 3f7e7150fe056f9dca8e1a00d455c420531f45ab
      https://github.com/zopefoundation/zope.app.locales/commit/3f7e7150fe056f9dca8e1a00d455c420531f45ab
  Author: Lennart Regebro <regebro at gmail.com>
  Date:   2016-02-17 (Wed, 17 Feb 2016)

  Changed paths:
    M src/zope/app/locales/extract.py
    M src/zope/app/locales/tests.py

  Log Message:
  -----------
  Added in the path filtering function

The API was clearly design to support this, but it never did.
However, z3c.recipe.i18n uses this feature and depends on
zope.app.locale. Let's expand this so we only need one
copy of this function.