FreeSWITCH

Merge pull request #585 in FS/freeswitch from ~LEKENSTEYN/freeswitch:xml-fixes to master

* commit '48d6a5f6a8fb21a7e20302cfdd4ff012288b3892':
  switch_xml_decode: avoid NUL injection
  switch_xml_set_attr: fix inconsistent state on error paths