Merged from trunk 6470:6473

   Merged from trunk 6470:6473

   +------------------------------------------------------------------------+
   | 6471     | document the behavior of `ebuild` wrt FEATURES=noauto       |
   | SpankMan | #175444                                                     |
   |----------+-------------------------------------------------------------|
   | 6472     | Remove news about profile masking which has been reverted   |
   | zmedico  | pending resolution of bug #170697. Thanks to Arfrever       |
   |          | Frehtes Taifersar Arahesis in #149508.                      |
   |----------+-------------------------------------------------------------|
   | 6473     | For bug #176765, when a new package is blocked by another   |
   | zmedico  | one that is being replaced, handle another case where the   |
   |          | conflict can be avoided.                                    |
   +------------------------------------------------------------------------+

svn path=/main/branches/prefix/; revision=6475