Update ChangeLog & NEWS for 0.18rc1

Changelog

@@ -6,10 +6,10 @@ Unified Changelog file for Synnefo versions >= 0.13
 Since v0.13 most of the Synnefo components have been merged into a single
 repository and have aligned versions.
 
-.. _Changelog-0.17next:
+.. _Changelog-0.18rc1:
 
-v0.17next
-=========
+v0.18rc1
+========
 
 Released: UNRELEASED
 

NEWS

@@ -5,6 +5,25 @@ Unified NEWS file for Synnefo versions >= 0.13
 
 Since v0.13 all Synnefo components have been merged into a single repository.
 
+.. _NEWS-0.18rc1:
+
+v0.18rc1
+========
+
+Released: UNKNOWN
+
+The Synnefo 0.18 release brings significant bug fixes across Synnefo.
+
+The most notable changes are:
+
+* Improved project management and quota policy enforcement
+* Performance optimizations of Pithos object listing queries
+* Support for modifying user e-mails from the Admin Panel
+* Various Admin panel enhancements
+* Support for multiple eventd instances and automatic ganeti master failover
+  detection
+* Support for Sentry
+
 .. _NEWS-0.17:
 
 v0.17

docs/admin-guide.rst

@@ -3085,6 +3085,7 @@ Changelog, NEWS
 ===============
 
 
+* v0.18rc1 :ref:`Changelog <Changelog-0.18rc1>`, :ref:`NEWS <NEWS-0.18rc1>`
 * v0.17 :ref:`Changelog <Changelog-0.17>`, :ref:`NEWS <NEWS-0.17>`
 * v0.16.2 :ref:`Changelog <Changelog-0.16.2>`, :ref:`NEWS <NEWS-0.16.2>`
 * v0.16.1 :ref:`Changelog <Changelog-0.16.1>`, :ref:`NEWS <NEWS-0.16.1>`