Updating to 'beta' version number

git-svn-id: http://svn.igniterealtime.org/svn/repos/wildfire/trunk@7800 b35dd754-fafc-0310-a699-88a17e54d16e

build/rpm/openfire.spec

 Summary: Openfire XMPP Server
 Name: openfire
 Version: 3.3.0
-Release: alpha
+Release: beta
 BuildRoot: %{_builddir}/%{name}-root
 Source0: %{name}_src_3_3_0_beta.tar.gz
 Group: Applications/Communications