Update NEWS file in preparation of 2.10.0rc2

Include changes made in 2.8, 2.9 and in 2.10 in the NEWS file.
Signed-off-by: Thomas Thrainer <thomasth@google.com>
Reviewed-by: Jose A. Lopes <jabolopes@google.com>

NEWS

@@ -2,10 +2,10 @@ News
 ====
 
 
-Version 2.10.0 rc1
+Version 2.10.0 rc2
 ------------------
 
-*(Released Tue, 17 Dec 2013)*
+*(Released Wed, 29 Jan 2014)*
 
 Incompatible/important changes
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -71,6 +71,34 @@ Python
 - The version requirements for ``python-mock`` have increased to at least
   version 1.0.1. It is still used for testing only.
 
+Since 2.10.0 rc1
+~~~~~~~~~~~~~~~~
+
+- Documentation improvements
+- Run drbdsetup syncer only on network attach
+- Include target node in hooks nodes for migration
+- Fix configure dirs
+- Support post-upgrade hooks during cluster upgrades
+
+Inherited from the 2.9 branch:
+
+- Ensure that all the hypervisors exist in the config file (Issue 640)
+- Correctly recognise the role as master node (Issue 687)
+- configure: allow detection of Sphinx 1.2+ (Issue 502)
+- gnt-instance now honors the KVM path correctly (Issue 691)
+
+Inherited from the 2.8 branch:
+
+- Change the list separator for the usb_devices parameter from comma to space.
+  Commas could not work because they are already the hypervisor option
+  separator (Issue 649)
+- Add support for blktap2 file-driver (Issue 638)
+- Add network tag definitions to the haskell codebase (Issue 641)
+- Fix RAPI network tag handling
+- Add the network tags to the tags searched by gnt-cluster search-tags
+- Fix caching bug preventing jobs from being cancelled
+- Start-master/stop-master was always failing if ConfD was disabled. (Issue 685)
+
 Since 2.10.0 beta1
 ~~~~~~~~~~~~~~~~~~
 
@@ -109,6 +137,15 @@ Inherited from the 2.8 branch:
 - Refactor reading live data in htools (future proofing cherry-pick)
 
 
+Version 2.10.0 rc1
+------------------
+
+*(Released Tue, 17 Dec 2013)*
+
+This was the first RC release of the 2.10 series. All important changes
+are listed in the latest 2.10 entry.
+
+
 Version 2.10.0 beta1
 --------------------