Remove Deprecated use of Execption.message

[Robert Myers]

When running the tests and in the logs we have this warning:

DeprecationWarning: BaseException.message has been deprecated as of Python 2.6
  raise exception.BadRequest(ve.message)
/Users/robe5515/stackforge/reddwarf/reddwarf/extensions/mysql/common.py:35: DeprecationWarning: BaseException.message has been deprecated as of Python 2.6
  raise exception.BadRequest(ve.message)
/Users/robe5515/stackforge/reddwarf/reddwarf/extensions/mysql/common.py:35: DeprecationWarning: BaseException.message has been deprecated as of Python 2.6
  raise exception.BadRequest(ve.message)

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/26374
Committed: http://github.com/stackforge/reddwarf/commit/439d35dbce60ff4209ba5b34934083ff230602d5
Submitter: Jenkins
Branch: master

commit 439d35dbce60ff4209ba5b34934083ff230602d5
Author: Robert Myers <email address hidden>
Date: Mon Apr 8 08:52:55 2013 -0500

    Stop the deprecated use of Exception.message to please Python

    * This fixes all the warning messages during the test which
      are annoying and verbose

    Fixes: bug 1166221
    Change-Id: I4b0276f4c29c91a46d8d4913b40e9767bb75a7f1