DI window status plugin

Change-Id: I9c0d61b49aa86bbaa2dd592e98366f3800cc3c6d
Reviewed-on: http://gerrit.dmdirc.com/3100
Reviewed-by: Chris Smith <chris@dmdirc.com>
Automatic-Compile: DMDirc Build Manager
More minor tidying.

Change-Id: Ic2f74530c7d1bf8817dcaaa742c9dcba5c1bee40
Reviewed-on: http://gerrit.dmdirc.com/3101
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Greg Holmes <greg@dmdirc.com>