Merged from trunk -r11860:11867

   Merged from trunk -r11860:11867

   | 11861   | Bug #246451 - Inside SecuritySet._reduce(), use              |
   | zmedico | portdbapi.xmatch("match-all") in order do be consistent with |
   |         | portage.glsa.getMinUpgrade() which also uses match-all.      |

   | 11862   | Use a frozenset to optimize skiplist containment checks      |
   | zmedico | inside NewsManager.updateItems().                            |

   | 11863   | Instead of raising a TypeError from the NewsItem             |
   | zmedico | constructor, check the path inside NewsManager.updateItems() |
   |         | before the NewsItem constructor is called.                   |

   | 11864   | Inside NewsManager.updateItems(), use a mutable set for      |
   | zmedico | skiplist and sort the contents when writing the file.        |

   | 11865   | Sort the return value from cpv_all() inside                  |
   | zmedico | vardbapi._counter_hash() instead of sorting them in side     |
   |         | cpv_all(). Thanks to Brian Harring for the suggestion.       |

   | 11866   | * Add NewsItem.isValid() and DisplayRestriction.isValid()    |
   | zmedico | methods and use use them to check validity inside            |
   |         | NewsManager.updateItems(). * Make                            |
   |         | DisplayInstalledRestriction.isValid() check validity of the  |
   |         | atom.                                                        |

   | 11867   | Use a simpler approach instead of implementing               |
   | zmedico | NewsItem.__getattr__().                                      |
   Merged from trunk -r11867:11893

   | 11868   | Always return early from NewsManager.updateItems() if        |
   | zmedico | self.unread_path can't be created.                           |

   | 11869   | Return early from NewsManager.updateItems() if the news path |
   | zmedico | listdir call fails.                                          |

   | 11870   | Misc fixes and cleanups in NewsManager.                      |
   | zmedico |                                                              |

   | 11871   | Add quote from GLEP 42 about permission bits.                |
   | zmedico |                                                              |

   | 11872   | Use grabfile() instead of grablines(), to ignore empty       |
   | zmedico | lines.                                                       |

   | 11873   | Use apply_secpass_permissions() to avoid                     |
   | zmedico | OperationNotPermitted errors when not allowed to chown files |
   |         | to root uid.                                                 |

   | 11890   | Bug #244485 - Document the doman enhancement from bug        |
   | zmedico | #222439.                                                     |

   | 11891   | Bug #244485 - Document src_prepare() and src_configure()     |
   | zmedico | phase functions.                                             |

   | 11892   | Bug #244485 - Document the default phase function helpers.   |
   | zmedico |                                                              |

   | 11893   | Rename the "FUNCTIONS" section to "PHASE FUNCTIONS".         |
   | zmedico |                                                              |

svn path=/main/branches/prefix/; revision=11944