Update submodules: plugins (new commits)

plugins:
    f2c96e4 Greg Holmes <greg@dmdirc.com>
            Fix showConfig for Nick Colour plugin.

            This isn't hugely pretty and we should probably investigate a
            better way of doing this.

            Fixes-Issue: CLIENT-429
            Gerrit: http://gerrit.dmdirc.com/3154

Change-Id: Ic39630d156d127e079fc9f65e948e0213c52580d
Update submodules: plugins (new commits)

plugins:
    b4a9412 Greg Holmes <greg@dmdirc.com>
            Adds prefs settings directly from plugin.

            Fixes-Issue: CLIENT-428
            Gerrit: http://gerrit.dmdirc.com/3153

Change-Id: Ib9b86873322edd5554dac39de2a98b11da5891b6