Fix one NPE in Mms app

For tablet we usually declare not support mobile_* networkAttributes but ethernet,
wifi,bt in config.xml. this will trigger this NPE.

Change-Id: I761c8514f5569bef1242f9fddc321c0aed564d9e
Signed-off-by: Jianzheng Zhou <jianzheng.zhou@freescale.com>
Mms: Device crashes when sending message with attachment.

Need to handle IllegalStateException in addition of the
MMSException when creating draft MMS.

Change-Id: Ieb1618872d7faa472a6fea08c1b3ef1ae0cde183
Author: Jianli Zhang <jianli.zhang@borqs.com>
Signed-off-by: Frederic Predon <frederic.predon@intel.com>
Signed-off-by: Xiaokang Qin <xiaokang.qin@intel.com>
Signed-off-by: Beare, Bruce J <bruce.j.beare@intel.com>
Signed-off-by: Jack Ren <jack.ren@intel.com>
Author-tracking-BZ: 7844
Fix reference to static fields through instance

START_TAG and END_DOCUMENT are static fields and should be
accessed in a static way as per notes in the official documentation
at http://docs.oracle.com/javase/tutorial/java/javaOO/classvars.html

Change-Id: I6a626f9efe33605d08ea136eca7be8fc9a7e402d
Signed-off-by: Manuel R. Ciosici <manuelrciosici@gmail.com>