[libcroco] Update NEWS for 0.6.4

[Christian Persch <chpe src gnome org>]

commit 9431dcffa84b80f5867a84785da5bd154594fe50
Author: Christian Persch <chpe gnome org>
Date:   Mon Feb 6 20:24:03 2012 +0100

    Update NEWS for 0.6.4

 NEWS |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)
---
diff --git a/NEWS b/NEWS
index b06e459..1705e49 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,12 @@
+0.6.4
+
+    Changes & Bugfixes since 0.6.3
+    ==============================
+    * Use -Bsymbolic-functions when available
+    * Modernise and simplify configure
+    * #666248: vc++ compilation support
+    * #640897: fix format string warning in testcase
+
 0.6.3:
 
     Bugfixes since 0.6.2