Obiee 11g upgrade

Adaptations to work with OBIEE 11g instead of 10g.

The major differences are:
* the url is different -- /Analytics now results in a 404
* we are the v7 endpoint instead of the v7 endpoint
* the suggested package name of the generated java classes is different
* schema is only returned if the data is non-empty
* generated sql queries don't as closely match the stored xml reports as they used to

This is related to http://jira.uscm.org/browse/MISC-178