Enables SimpleClient/SimpleServer to communicate over the BLE on Android.

Enables SimpleClient/SimpleServer to communicate over the BLE on Android.

The wait/re-try logic was introduced into CALEClientSendMulticastMessageImpl
to make sure that there is at least one connections established before
the send call is made.

Change-Id: I5ad52321fc316005dbc48e4e323205a661293f3e
Signed-off-by: Tim Kourt <tim.a.kourt@intel.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/2248
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Jon A. Cruz <jonc@osg.samsung.com>