Merged from trunk -r12764:12771

   Merged from trunk -r12764:12771

   | 12765   | Fix failure exit status. Thanks to Brian Harring.            |
   | zmedico |                                                              |

   | 12766   | whitespace cleanup                                           |
   | zmedico |                                                              |

   | 12767   | Make digraph store a single priority list for each edge      |
   | zmedico | instead of two identical lists.                              |

   | 12768   | Send message about unset RESUMECOMMAND to stderr instead of  |
   | zmedico | stdout.                                                      |

   | 12769   | Define __slots__ for classes derived from ObjectProxy.       |
   | zmedico |                                                              |

   | 12770   | Remove unused import.                                        |
   | zmedico |                                                              |

   | 12771   | Add keyword argument support to LazyItemsDict.update().      |
   | zmedico |                                                              |

svn path=/main/branches/prefix/; revision=12786