Fix Statusbar not showing components.

Change-Id: I3e97728803759a7d6a091425c9a539a98fb06640
Reviewed-on: http://gerrit.dmdirc.com/3988
Reviewed-by: Chris Smith <chris@dmdirc.com>
Automatic-Compile: DMDirc Build Manager
Begin tidying up of WindowStatus Plugin.

Change-Id: Idfd426ddcc9441020c837dca79b97af4d78894f0
Reviewed-on: http://gerrit.dmdirc.com/3989
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Chris Smith <chris@dmdirc.com>