[connectionagent] Remove Qt 4 support. It is no longer used or necessary.
[connectionagent] Remove yaml. It isn't being kept up to date.
[connectionagent] Generate interface code from the XML at build time.

Don't rely on a pregenerated copy, as it may not be noticed by someone changing
this.
Merge pull request #57 from rburchell/cleanup

Cleanups
[connectionagent] fix merge

Merge branch 'master' into next

Conflicts:
	connd/connd.pro
	connd/main.cpp
	connd/qconnectionmanager.cpp
	connectionagent.pro
	rpm/connectionagent.spec
	test/auto/tst_connectionagent/tst_connectionagent.pro