Improvements to the configuration wizard

Currently the configuration wizard is really Tomcat specific and doesn't allow for easy configuration of an application to be deployed in a J2EE server such as JBoss, Weblogic or Websphere.

Ideally what the configuration wizard should do is :

• if running as a web application, it should be able to re-use an existing datasource to connect to the database. Only the type of database should be selected, so that we execute the proper script.
• the wizard should generate a WAR (and/or an EAR) of the Jahia installation, that could then be deployed. This would also solve the current problem of having to "restart" Jahia.
• the wizard could also be a Swing application that would be launched BEFORE running the server. For example this Swing tool could run on a development platform (such as a developer's or integrator's computer), and then the WAR/EAR could be deployed on the server.
• we should also look at cluster deployments, especially how we handle configuration to make it as easy as possible.