Merged from trunk -r12556:12560

   Merged from trunk -r12556:12560

   | 12557   | When scheduling builds in parallel for --jobs, avoid         |
   | zmedico | potential build dir collisions in cases when the same exact  |
   |         | cpv needs to be merged to multiple $ROOTs (like when         |
   |         | building stages). Thanks for Daniel Robbins for reporting    |
   |         | this issue and troubleshooting it.                           |

   | 12558   | In EbuildFetcher._start(), don't touch the build dir when in |
   | zmedico | prefetch mode. In this case, logging goes to                 |
   |         | emerge-fetch.log and the builddir should not be touched      |
   |         | since otherwise it could interfere with another instance of  |
   |         | the same cpv concurrently being built for a different $ROOT  |
   |         | (currently, builds only cooperate with prefetchers that are  |
   |         | spawned for the same $ROOT). Thanks to Daniel Robbins for    |
   |         | reporting this issue.                                        |

   | 12559   | - hardened gets way to many misfiled bugs related to         |
   | solar   | qa-execstack. Make it clear that bugs go to the maintainers  |
   |         | of the pkg and not hardened for fun and profit               |

   | 12560   | Fix color in merge list [ebuild ] display, so it's the same  |
   | zmedico | regardless of $ROOT.                                         |

svn path=/main/branches/prefix/; revision=12564