Open Stack

Hi, I'd like you to take a look at this patch for potential
DocImpact.
https://review.openstack.org/11086

Log:
commit 25542f992204ba833c1810c30796647f18bed374
Author: Kravchenko Pavel <kpavel at il.ibm.com>
Date:   Tue Dec 25 19:45:24 2012 +0200

    Adds evacuate method to compute.api
    
    Added decorator to check whether the vm is suitable to be evacuated.
    The decorator validates that vm host is down.
    The new evacuate method calls rebuild with the recreate flag and
    specified target host.
    
    This implements blueprint rebuild-for-ha
    
    DocImpact
    
    Change-Id: I877b29928c922fa366fb85deb85ddfc72d97daf8
    Co-authored-by: Oshrit Feder <oshritf at il.ibm.com>