Merged from trunk 11422:11443

   Merged from trunk 11422:11443

   | 11423   | Document /var/lib/portage/world_sets.                        |
   | zmedico |                                                              |

   | 11432   | Fix atom -> str breakage in StaticFileSet.write().           |
   | zmedico |                                                              |

   | 11433   | Don't assume that the "world" set is an instance of          |
   | zmedico | WorldSet, allowing the user to substitute some other set     |
   |         | type if desired.                                             |

   | 11434   | * Truncate status display output when necessary to avoid     |
   | zmedico | line overflow and unwanted terminal scroll. * When the load  |
   |         | average goes above 10, save space by showing fewer decimal   |
   |         | places in the output.                                        |

   | 11435   | Update for @everything -> @installed rename. Thanks to       |
   | zmedico | Arfrever.                                                    |

   | 11436   | The following error is known to occur with Linux kernel      |
   | zmedico | versions less than 2.6.24: select.error: (4, 'Interrupted    |
   |         | system call') This error has been observed after a SIGSTOP,  |
   |         | followed by SIGCONT. Treat it similar to EAGAIN if timeout   |
   |         | is None, otherwise just return without any events. Thanks to |
   |         | Jeremy Olexa <darkside@g.o> for reporting and testing this   |
   |         | patch.                                                       |

   | 11437   | Remove reference to use.default. Thanks to ulm for           |
   | zmedico | reporting.                                                   |

   | 11438   | Add an 'IUSE defaults' section.                              |
   | zmedico |                                                              |

   | 11439   | When in background mode, redirect "adjusting permissions"    |
   | zmedico | messages for features directories like CCACHE_DIR and        |
   |         | DISTCC_DIR. Thanks to Arfrever for reporting.                |

   | 11440   | Make sure EBUILD_PHASE is properly unset when calling        |
   | zmedico | misc-functions.sh.                                           |

   | 11441   | Make dblink call back to the scheduler for "clean" and       |
   | zmedico | "cleanrm" phases, to handle output redirection. Thanks to    |
   |         | Arfrever for reporting.                                      |

   | 11442   | Fix dep_wordreduce() so that it doesn't cancel out blocker   |
   | zmedico | atoms that happen to be matched by package.provided.         |

   | 11443   | Fix spelling of overriding for bug #235250.                  |
   | zmedico |                                                              |

svn path=/main/branches/prefix/; revision=11445