Update submodules: plugins (new commits)

plugins:
    4b4cece Greg Holmes <greg@dmdirc.com>
            Remove some lombok from swing ui

            Gerrit: http://gerrit.dmdirc.com/3001

Change-Id: Idee3ffd57f06d3ec7c501d218a4760ca3905d209
Update submodules: plugins (new commits)

plugins:
    9ca8f8c Greg Holmes <greg@dmdirc.com>
            Remove some more lombok from the swing ui

            Gerrit: http://gerrit.dmdirc.com/3002

Change-Id: I5aaaf51702d8f740c7ed33de4e096bad23305a63
Update submodules: plugins (new commits)

plugins:
    4497d41 Greg Holmes <greg@dmdirc.com>
            Refactor BackgroundPainter, mostly removing lombok

            Gerrit: http://gerrit.dmdirc.com/3003

Change-Id: I0f3ffd55180247931c19a1cc7502072bbf9e4c7f
Update submodules: plugins (new commits)

plugins:
    a5650ee Greg Holmes <greg@dmdirc.com>
            Delegate methods menually removing lombok

            Gerrit: http://gerrit.dmdirc.com/3004

Change-Id: I242ac91d1fe846e3ecae303c0eeef4691cb5e90c