Merge RA branch to master

Merge RA branch to master

fix build break

Patch Set 2:
  fix some casting warning.
  do not build raxmpp if WITH_RA_IBB is set.

Patch Set 3:
  fix set but not used warning.

Patch Set 4:
. update wksxmppxep version for support disable libstrophe debug
  messages.
. disable libstrophe debug message in RELEASE build, but still print
  error level messages.

Patch Set 5:
  add bound jid callback function for reporting bound full JID to
  application.

Patch Set 6:
  update for comments.

Patch Set 7:
   address code review comments.

Patch Set 8:
   update jidBoudCallback.

Change-Id: Ie7944c9e19697748b1d716c91ea6841ba0629531
Signed-off-by: K.J. Kao <jeremyk@workssys.com>
Signed-off-by: Sakthivel Samidurai <sakthivel.samidurai@intel.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/2460
Reviewed-by: Mandeep Shetty <mandeep.shetty@intel.com>
Reviewed-by: jihwan seo <jihwan.seo@samsung.com>
Reviewed-by: Daniel Liu <daniell@workssys.com>
Reviewed-by: Patrick Lankswert <patrick.lankswert@intel.com>
Tested-by: Patrick Lankswert <patrick.lankswert@intel.com>