Merge branch 'stable-2.16' into stable-2.17

* stable-2.16
  Update NEWS file for 2.16.0 rc1
  Bump version suffix to 2.16.0 rc1

Conflicts:
  NEWS: take all additions
  configure.ac: drop suffix bump

Signed-off-by: Viktor Bachraty <vbachraty@google.com>
Reviewed-by: Klaues Aehlig <aehlig@google.com>

diff --cc NEWS
index f89d42a,a4a7b13..33cb9a8
--- 1/NEWS
--- 2/NEWS
+++ b/NEWS
@@@ -2,48 -2,10 +2,48 @@@ New
  ====
  
  
 +Version 2.17.0 alpha1
 +---------------------
 +
 +*(unreleased)*
 +
 +Incompatible/important changes
 +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 +
 +- The IAllocator protocol has been extended by a new ``hv_state`` parameter.
 +  This new parameter is used to estimate the amount of memory utilized by
 +  the node. It replaces ``reserved_mem`` on hypervisors other than ``xen-pvm``
 +  and ``xen-hvm`` because ``reserved_mem`` was reported incorrectly on them.
 +  If this ``hv_state`` parameter is not presented in an iallocator input, the
 +  old ``reserved_mem`` will be used.
 +- Tools now log into a separate log file ``tools.log``. Also, each log
 +  message of tools is now properly labelled with the name of the tool
 +  that submitted the message.
 +- The options ``--debug`` and ``--verbose`` of ``gnt-cluster
 +  renew-crypto`` and ``gnt-node {add,remove,modify}`` now (also) control the
 +  log level of the SSH calls to all nodes.
 +
 +
 +New features
 +~~~~~~~~~~~~
 +
 +- There is a new daemon, the :doc:`Ganeti Maintenance Daemon <design-repaird>`,
 +  that coordinates all maintenance operations on a cluster, i.e. rebalancing,
 +  activate disks, ERROR_down handling and node repairs actions.
 +- ``htools`` support memory over-commitment now. Look at
 +  :doc:`Memory Over Commitment <design-memory-over-commitment>` for the
 +  details.
 +- ``hbal`` has a new option ``--avoid-disk-moves *factor*`` that allows disk
 +  moves only if the gain in the cluster metrics is ``*factor*`` times higher
 +  than with no disk moves.
 +- ``hcheck`` reports the level of redundancy for each node group as a new ouput
 +  parameter, see :doc:`N+M Redundancy <design-n-m-redundancy>`.
 +
 +
- Version 2.16.0 beta2
- --------------------
+ Version 2.16.0 rc1
+ ------------------
  
- *(Released Tue, 2 Feb 2016)*
+ *(Released Thu, 18 Feb 2016)*
  
  Incompatible/important changes
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~