Bump version for 2.1.2 release

Signed-off-by: Iustin Pop <iustin@google.com>
Reviewed-by: Michael Hanselmann <hansmi@google.com>

NEWS

@@ -4,7 +4,7 @@ News
 Version 2.1.2
 -------------
 
-*(Unreleased)*
+*(Released Fri, 7 May 2010)*
 
 Another release with a long development cycle, during which many
 different features were added.

configure.ac

 # Configure script for Ganeti
 m4_define([gnt_version_major], [2])
 m4_define([gnt_version_minor], [1])
-m4_define([gnt_version_revision], [1])
+m4_define([gnt_version_revision], [2])
 m4_define([gnt_version_suffix], [])
 m4_define([gnt_version_full],
           m4_format([%d.%d.%d%s],