Update submodules: plugins (new commits)

plugins:
    e7ef247 Greg Holmes <greg@dmdirc.com>
            Use newly paramatised ValidateableReorderableJList

            Gerrit: http://gerrit.dmdirc.com/3141

    f7d54d1 Greg Holmes <greg@dmdirc.com>
            Remove warnings from ignore list

            Gerrit: http://gerrit.dmdirc.com/3140

Change-Id: I05a01afaffac08b2163b0bd05ecb31e6db8eda0d
Update submodules: plugins (new commits)

plugins:
    5a5c1a0 Greg Holmes <greg@dmdirc.com>
            Remove warnings in updateconfigpanel

            Gerrit: http://gerrit.dmdirc.com/3142

Change-Id: If51fb9a0134dcb2a2b719386c46d81dc0deda5b0