Update submodules: plugins (new commits)

plugins:
    65d4f71 Chris Smith <chris@dmdirc.com>
            Remove static ThemeManager methods.

            Tidy AddonToggle's constructor a bit so it's less pathological.

            Gerrit: http://gerrit.dmdirc.com/2745

Change-Id: Ie85a76c9824337fb210b599635e989e6e4f8acec
Get rid of ThemeManager staticness.

Also tidy up the ParserFactory injection.

Change-Id: Iea6547b1464423485850d7a922c039b9d5857645
Reviewed-on: http://gerrit.dmdirc.com/2746
Reviewed-by: Greg Holmes <greg@dmdirc.com>
Automatic-Compile: DMDirc Build Manager