[MERGE] Merge branch 'stable-2.12' into stable-2.13

['Petr Pudlak' via ganeti-devel]

commit c8eb6d962d847e9cd9066c38f695e231443ce614
Merge: df841d8 ee12ac9
Author: Petr Pudlak <pud...@google.com>
Date:   Tue Mar 3 17:29:08 2015 +0100

    Merge branch 'stable-2.12' into stable-2.13
    
    * stable-2.12
      (no changes)
    
    * stable-2.11
      (no changes)
    
    * stable-2.10
      Relax expectation of accuracy
      Improve rounding accuracty in updateStatistics
      Update gnt-backup manual to reflect real behavior
      Finalize local export only if successful
    
    * stable-2.9
      Stop MonD when removing a node from a cluster