configure, NEWS: Bump version to 2.18.0 for release

Another quarter, a bit late as I was debugging a few regressions,
another release.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

NEWS

@@ -1,3 +1,29 @@
+Release 2.18.0 (2012-02-24)
+===========================
+Time passes, a few more bugs have crept out of the woodwork that are a
+compelling reason to update.
+
+Bugs fixed in this release (compared to 2.17.0)
+-----------------------------------------------
+
+* Limit maximum object size so that all of the source, mask and
+  destination can be mapped into the aperture simultaneously by basing the
+  limit on the mappable aperture size rather than the size of the total
+  GATT.
+
+* Incorrect clipping of polygons
+  https://bugs.freedesktop.org/show_bug.cgi?id=43649
+  Regression from 2.15.901
+
+* Limit number of VMA cached to avoid hitting the per-process VMA limit
+  There still is a residual bug in that we seem to have so many objects
+  floating around in the first place and that still leads to exhaustion
+  of system limits.
+  https://bugs.freedesktop.org/show_bug.cgi?id=43075
+  https://bugs.freedesktop.org/show_bug.cgi?id=40066
+
+* Latency in processing user-input during continuous rendering
+
 Release 2.17.0 (2011-11-16)
 ==============================
 A few months have passed, and we have accumulated a surprising number of

configure.ac

@@ -23,7 +23,7 @@
 # Initialize Autoconf
 AC_PREREQ([2.60])
 AC_INIT([xf86-video-intel],
-        [2.17.0],
+        [2.18.0],
         [https://bugs.freedesktop.org/enter_bug.cgi?product=xorg],
         [xf86-video-intel])
 AC_CONFIG_SRCDIR([Makefile.am])