Set defaults all in one place
Remove unused variable.
Add more default values.
Use procid
Fix check for msgid.
Class name is a string, not a constant.
Ensure this is always defined.
Avoid issues with the use of arrays via magic __get() method.
Merge branch 'master' into horde_activesync_3_0

Conflicts:
	framework/ActiveSync/lib/Horde/ActiveSync/Message/Contact.php