Release 2.0rc2

This updates the NEWS file and bumps up the version number.

Reviewed-by: ultrotter

NEWS

+Version 2.0 release candidate 2
+  - Now the cfgupgrade scripts works and can upgrade 1.2.7 clusters to
+    2.0
+  - Fix watcher startup sequence, improves the behaviour of busy
+    clusters
+  - Some other fixes in cluster verify, replace-disks, gnt-instance add,
+    gnt-cluster queue, KVM VNC bind address and other places
+  - Some documentation fixes and updates
+
 Version 2.0 release candidate 1
   - More documentation updates, now all docs should be more-or-less
     up-to-date

configure.ac

@@ -2,7 +2,7 @@
 m4_define([gnt_version_major], [2])
 m4_define([gnt_version_minor], [0])
 m4_define([gnt_version_revision], [0])
-m4_define([gnt_version_suffix], [~rc1])
+m4_define([gnt_version_suffix], [~rc2])
 m4_define([gnt_version_full],
           m4_format([%d.%d.%d%s],
                     gnt_version_major, gnt_version_minor,