Bumped version post-release

Bugzilla/Constants.pm

@@ -196,7 +196,7 @@ use Memoize;
 # CONSTANTS
 #
 # Bugzilla version
-use constant BUGZILLA_VERSION => "4.5.3";
+use constant BUGZILLA_VERSION => "4.5.3+";
 
 # Location of the remote and local XML files to track new releases.
 use constant REMOTE_FILE => 'http://updates.bugzilla.org/bugzilla-update.xml';