Merged from trunk -r11811:11816

   Merged from trunk -r11811:11816

   | 11812   | Override Atom.__setattr__() to make Atom instances           |
   | zmedico | immutable. Thanks to Brian Harring for the suggestion.       |

   | 11813   | In Atom.__setattr__(), include inputs in case it helps for   |
   | zmedico | debugging with derived classes. Thanks to Brian Harring for  |
   |         | the suggestion.                                              |

   | 11814   | Bug #245661 - Never enable --complete-graph automatically    |
   | zmedico | since it's confusing for users.                              |

   | 11815   | Remove the special package.keywords mask warning from bug    |
   | zmedico | #223447 since --depclean now uses the depgraph class and     |
   |         | therefore should be more consistent with the update          |
   |         | algorithm.                                                   |

   | 11816   | Bug #245932 - Pass use_mask and use_force parameters into    |
   | zmedico | recursive _expand_new_virtuals() calls, fixing a TypeError   |
   |         | which is triggered inside                                    |
   |         | portage.dep._use_dep._eval_qa_conditionals().                |

svn path=/main/branches/prefix/; revision=11937