Merged from trunk -r15507:15517

   Merged from trunk -r15507:15517

   | 15508   | Move imports to the top and use writemsg_stdout instead of   |
   | zmedico | print().                                                     |

   | 15509   | Use writemsg instead of print. Also don't use _ as a         |
   | zmedico | variable name since it collides with _ from                  |
   |         | portage.localization.                                        |

   | 15510   | Add a note in _find_system_deps about needing the system set |
   | zmedico | added to the graph.                                          |

   | 15511   | Fix legacy globals proxies to reset state when the portage   |
   | zmedico | module is reloaded. This fixes ebuild(1) failing to generate |
   |         | manifests when the ebuild is not in PORTDIR_OVERLAY, as      |
   |         | reported by Arfrever.                                        |

   | 15512   | Test for python openpty breakage after freebsd7 to freebsd8  |
   | zmedico | upgrade, which results in a 'Function not implemented' error |
   |         | and the process being killed. Thanks to Javier               |
   |         | Villavicenciom <the_paya@g.o> for reporting and helping to   |
   |         | develop this test.                                           |

   | 15513   | Bug #306659 - For --rebuilt-binaries, only reinstall if      |
   | zmedico | binary package BUILD_TIME is non-empty, in order to avoid    |
   |         | cases like to bug #306659 where BUILD_TIME fields are        |
   |         | missing in local and/or remote Packages file.                |

   | 15514   | Move imports to top.                                         |
   | zmedico |                                                              |

   | 15515   | Move _pty module to portage.util._pty.                       |
   | zmedico |                                                              |

svn path=/main/branches/prefix/; revision=15736