Update submodules: plugins (new commits)

plugins:
    5717177 Greg Holmes <greg@dmdirc.com>
            DI the paste dialog

            Gerrit: http://gerrit.dmdirc.com/3267

Change-Id: I857e501da2d3fd89554ecd4c05748f885803081e
Add some more events

Change-Id: Ib227c72d5077d09487a771ffd9125d2fae021ac1
Reviewed-on: http://gerrit.dmdirc.com/3268
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Greg Holmes <greg@dmdirc.com>