Merged from trunk -r13988:13998

   Merged from trunk -r13988:13998

   | 13989   | Bug #280460 - Wrap portage.os with unicode encode/decode     |
   | zmedico | wrappers.                                                    |

   | 13990   | Fix unicode support for compatibility with the new wrapped   |
   | zmedico | os module, and use _unicode_decode() and _unicode_encode()   |
   |         | where appropriate.                                           |

   | 13991   | Fix breakage from previous commit.                           |
   | zmedico |                                                              |

   | 13992   | Avoid using the wrapped os.read(), in order to avoid         |
   | zmedico | differing behavior between python-2.x (with wrapper) and     |
   |         | py3k (without wrapper). This sort of mismatch only applies   |
   |         | to os functions that return raw bytes under py3k, rather     |
   |         | than unicode.                                                |

   | 13993   | Update imports to import portage.os (with unicode wrappers), |
   | zmedico | and use _unicode_encode() and _unicode_decode() where        |
   |         | appropriate.                                                 |

   | 13994   | Update imports to import portage.os (with unicode wrappers), |
   | zmedico | and use _unicode_encode() and _unicode_decode() where        |
   |         | appropriate.                                                 |

   | 13995   | Update imports to import portage.os (with unicode wrappers), |
   | zmedico | and use _unicode_encode() and _unicode_decode() where        |
   |         | appropriate.                                                 |

   | 13996   | Update imports to import portage.os and portage.shutil (with |
   | zmedico | unicode wrappers), and use _unicode_encode() where           |
   |         | appropriate.                                                 |

   | 13997   | Add ACCEPT_PROPERTIES variable which has default value * and |
   | volkmar | can be set in make.conf or /etc/portage/package.properties.  |
   |         | If ACCEPT_PROPERTIES doesn't match ebuild PROPERTIES, the    |
   |         | ebuild is masked.                                            |

   | 13998   | Temporarily delete the os and shutil imports, to ensure that |
   | zmedico | only the wrapped versions are imported by portage internals. |

svn path=/main/branches/prefix/; revision=14043