Bind quiescent/*component* when calling on-initial-render callback fn
Rename `on-initial-render` to `on-mount` for clarity
Added more lifecycle wrappers...

The `componentWillMount` and `componentWillUpdate` are helpful if you
need to setup/cleanup event handlers outside of React. An example would
be a component that listens for history events to do some routing. Or a
component that listens for key events on the document or window object
to hide or show a modal dialog.
Merge remote-tracking branch 'OtherPeoplesPixels/will-mount-will-unmount'

Conflicts:
	src/quiescent.cljs