Merged from trunk -r14182:14186

   Merged from trunk -r14182:14186

   | 14184    | Fix documentation of some QA_* variables.                   |
   | arfrever |                                                             |

   | 14185    | Bug #282808 - Handle a potential KeyError inside            |
   | zmedico  | PollScheduler._poll_loop() when _poll_event_queue contains  |
   |          | an event for a file descriptor that has already been        |
   |          | unregistered.                                               |

   | 14186    | Remove unnecessary redundant dict lookup at the beginning   |
   | zmedico  | of catpkgsplit(). Thanks to Marat Radchenko                 |
   |          | <slonopotamusorama@gmail.com> for this patch.               |

svn path=/main/branches/prefix/; revision=14194