Merged from trunk 10521:10541

   Merged from trunk 10521:10541

   | 10523   | Make PackageSet._setAtoms() use existing Atom instances when |
   | zmedico | available.                                                   |

   | 10525   | Fix EditablePackageSet.update() to create Atom instances     |
   | zmedico | when necessary.                                              |

   | 10526   | Make --skipfirst tolerate masked packages by dropping them   |
   | zmedico | (similar to how it would drop a package that has an          |
   |         | unsatisfied dependency).                                     |

   | 10528   | Revert changes wrt argument atoms in the previous commit     |
   | zmedico | since it's not really useful.                                |

   | 10529   | Update the UnsatisfiedResumeDep display to distinguish       |
   | zmedico | masked packages from those with unsatisfied dependencies.    |

   | 10532   | Update the --skipfirst dropped packages warning to mention   |
   | zmedico | "masking" in addition to unsatisfied dependencies.           |

   | 10533   | Reference depgraph.UnsatisfiedResumeDep instead of           |
   | zmedico | mydepgraph since the latter can trigger an UnboundLocalError |
   |         | in some cases (^C for example).                              |

   | 10535   | Mention masked packages in another --resume message.         |
   | zmedico |                                                              |

   | 10538   | Fix typo.                                                    |
   | zmedico |                                                              |

   | 10541   | Filter PORTAGE_BINPKG_FILE in save_ebuild_env().             |
   | zmedico |                                                              |

svn path=/main/branches/prefix/; revision=10545