bump version on dev after branching train-2012.04.27

ChangeLog

+train-2012.05.09 (in progress):
+  *
+
 train-2012.04.27:
   * Observer API updated, still experimental.
   * A more responsive dialog design that scales to different screen sizes: #1101, #1317

scripts/browserid.spec

 %define _rootdir /opt/browserid
 
 Name:          browserid-server
-Version:       0.2012.04.27
+Version:       0.2012.05.09
 Release:       1%{?dist}_%{svnrev}
 Summary:       BrowserID server
 Packager:      Pete Fritchman <petef@mozilla.com>