Description of problem:

Using the rest api to Create Brick (add brick to volume) is no longer returning brick information. The following request with the header accept:application/xml receives response with an empty body.

(for example: POST /api/clusters/9f2b00c0-1067-430e-bbd0-762f32f0f527/glustervolumes/505884b7-ade2-47fb-8558-f6a37a29a742/bricks)

----sample request----
POST /api/clusters/9f2b00c0-1067-430e-bbd0-762f32f0f527/glustervolumes/505884b7-ade2-47fb-8558-f6a37a29a742/bricks HT»
 Content-Type: application/xml
 Accept: application/xml
 Content-Length: 231
 Host: latest.rhsc:443
 Connection: Keep-Alive
 User-Agent: Apache-HttpClient/4.1.3 (java 1.5)
 Authorization: Basic YWRtaW5AaW50ZXJuYWw6cmVkaGF0
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>[\n]"
<bricks>[\n]"
    <brick>[\n]"
        <server_id>8e1e7e0f-cce0-41f8-bbb2-439b207f2ee5</server_id>[\n]"
        <brick_dir>/tmp/20131210092523106927299489</brick_dir>[\n]"
    </brick>[\n]"
</bricks>[\n]"
---------------------------

Version-Release number of selected component (if applicable):
rhsc-cb10

How reproducible:
100% of the time


Steps to Reproduce:
1. create a distributed volume in rhsc
2. call create brick as described in the description


Actual results:
empty body and content type is text/plain

"HTTP/1.1 202 Accepted[\r][\n]"
 "Date: Tue, 10 Dec 2013 14:25:23 GMT[\r][\n]"
 "Content-Length: 0[\r][\n]"
 "Connection: close[\r][\n]"
 "Content-Type: text/plain; charset=UTF-8[\r][\n]"
 "[\r][\n]"

Expected results:

application/xml
<bricks>
<brick id="xxxx">
...
</brick>
</bricks>


Additional info: