This is the port to git master of the following commit:
commit 1c29ce5999d11dee2898e7bf41c00995a00c71d0
Author: Dan Williams <dcbw@redhat.com>
Date: Mon Aug 27 17:36:49 2012 -0500
sms: fix handling of 'data' property for multipart messages
Text was getting concatenated when reconstructing the full message,
but the data wasn't. That meant that non-text multipart messages,
like the binary APN/MMS settings messages that operators often send,
were broken.