Use alarm and event notification for myDouble FP coloring.
Squashed commit of the following:

commit 81caf46ca2f6eb0af65c3a827fe4b4e9a671060c
Author: Holger Brand <H.Brand@gsi.de>
Date:   Wed Jul 9 16:20:50 2014 +0200

    Modify  coloring of myDouble FP element for differen alarm status.

commit 812cf890d5d6a2473d26a82a659e421daa04fff8
Author: Holger Brand <H.Brand@gsi.de>
Date:   Tue Jul 8 17:46:45 2014 +0200

    PVClientExample works with myDouble alarms resulting in color changes.

commit 67911db04cf9b18d8b87122fde8c1683b94ee282
Author: Holger Brand <H.Brand@gsi.de>
Date:   Tue Jul 8 14:20:06 2014 +0200

    Add registration for alarm and event