Resolved JERSEY-1553 (reopened).

- added support for vararg version of ResponseBuilder.variants(…) method.

Change-Id: If767c98c717f1fd4c3ae304428f0dbfb4ce233ed
Signed-off-by: Marek Potociar <marek.potociar@oracle.com>
Merge "Resolved JERSEY-1553 (reopened)."