Merge pull request #11 from timkoma/master

TIVI-2280 BasicPropertyType uses uninitialized mValue(null), MapPropertyType and ListPropertyType issues
fixed warnings in database and websocket plugins.  added delay option to example plugin
added delay option to example sourc eplugin, fixed amb-qt so it compiles, added amb-qt test app
Bumped version up.  master will now be development branch for 0.12
updated release notes
added dbus method debug info to manager interface
fixed race to set the time
cleaned up some unessary code in AbstractProperty
throttle dbus signals
create 'frequency' option for dbus plugin
fixed useless contains call in core
signaller change
removed duplicate method from core
converted sink manager and sink to binary protocol
basic working plugins
testing
add option to use json or binary protocol
generally working plugin
readded old websocket sink plugin
readded websocketsink plugin