Merged from trunk 7984:7994

   Merged from trunk 7984:7994

   | 7985     | Fix package.license support so that SLOT atoms will work.   |
   | zmedico  |                                                             |

   | 7986     | Bug #194552 - Include EAPI in the binary package metadata   |
   | zmedico  | index.                                                      |

   | 7987     | In PackageIndex.readBody(), make each package entry inherit |
   | zmedico  | CHOST from the header.                                      |

   | 7988     | In PackageIndex.write(), skip writing the CHOST for a       |
   | zmedico  | package entry if it's CHOST matches the header.             |

   | 7989     | Fix binarytree.populate() so that it properly caches all    |
   | zmedico  | the metadata necessary for visibility filtering.            |

   | 7990     | add QA check for .pyc/.pyo files in /usr/share              |
   | SpankMan |                                                             |

   | 7991     | add support for .lzma / .tar.lzma to unpack                 |
   | SpankMan |                                                             |

   | 7992     | unify diff_command handling                                 |
   | SpankMan |                                                             |

   | 7993     | add standard --help/--version options                       |
   | SpankMan |                                                             |

   | 7994     | add --debug option and display a message about skipping     |
   | SpankMan | non-files so we dont get confusing loops where portage      |
   |          | claims there are things to update but etc-update claims     |
   |          | there are not                                               |

svn path=/main/branches/prefix/; revision=8004