Allow user to use different versions of Axis2 runtime

In order to let users create or consume Axis2 Web service components in an Eclipse workspace, the Web service development tools need to have access to the Axis2 jars to copy them to the Web project containing the Web service component. Currently, the latest Axis2 version available is Axis2 1.1. If WTP includes a copy of the Axis2 jars in a plugin, similar to the current implementation of the tools for Axis 1.3, WTP will need to keep updating the plugin with newer releases of Axis2 as they become available. Not only is this extra work for the development team and the legal team, but it may inconvenience those users who have invested in an earlier release of Axis2 and do not want to be forced to move up to the latest version.

So this enhancement request is to let the user specify which version of Axis2 release they want to use similar to how they currently install server runtime. The user would download the version of Axis2 they want into their machine and then use "install Web service rutnime" to point the Axis2 Web service tools to the location of the download (in zip or unzipped form).