[translate/translate] 2f4e29: Fix parsing of Gettext po files with first entry i...

[Michal Č. <mi...@ci...>]

  Branch: refs/heads/master
  Home:   https://github.com/translate/translate
  Commit: 2f4e298d842d7f902fd8d4d3864a4c237c50be40
      https://github.com/translate/translate/commit/2f4e298d842d7f902fd8d4d3864a4c237c50be40
  Author: Michal Čihař <mi...@ci...>
  Date:   2016-06-30 (Thu, 30 Jun 2016)

  Changed paths:
    M translate/storage/poparser.py
    M translate/storage/test_po.py

  Log Message:
  -----------
  Fix parsing of Gettext po files with first entry in unicode

The headers is first parsed with iso-8859-1 and the parser always
parses next line using this encoding. This needs to be parsed again once
we know proper encoding of the file.