Comment 49 for bug 306362

Created an attachment (id=20924)
cleanup of system.d

Here is a first pass through the system.d directory. The major themes are:

* Changing things to use send_destination. This fixes the introspection handling.
* Removing rules of the form <deny send_interface="org.foo.Bar"/>. These are actively harmful and break introspection - see bug 18961. I also took the opportunity to remove rules that should be redundant now.
* Adding missing <context="default"><allow send_destination="com.foo.Baz"/> rules.