Update submodules: plugins (new commits)

plugins:
    86039db Greg Holmes <greg@dmdirc.com>
            Simplify PluginFilesHelper

            Fixes-Issue: CLIENT-394
            Depends-On: Ib8d889891cf4e92d7cb1b50949d5d24f7bc8ca85
            Gerrit: http://gerrit.dmdirc.com/2639

Change-Id: Id3e71a6dfda571d48588cb83bcdb398314a5b284
Simplify PluginsFilesHelper.

Change-Id: Ib8d889891cf4e92d7cb1b50949d5d24f7bc8ca85
Depends-On: I7494ecfeab6d588e66e569c1370fab9e485d4865
Reviewed-on: http://gerrit.dmdirc.com/2638
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Chris Smith <chris@dmdirc.com>
Update submodules: plugins (new commits)

plugins:
    c4086f2 Greg Holmes <greg@dmdirc.com>
            Add limit to number of status bar messages.

            Fixes-Issue: CLIENT-398
            Gerrit: http://gerrit.dmdirc.com/2636

Change-Id: Ie1ce87561788d54ea392d6c54433c41305739a10