Tidying, inject a few more things.

Change-Id: I9890b67a410c382ac29bd8c264fb7deed389710e
Reviewed-on: http://gerrit.dmdirc.com/2921
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Greg Holmes <greg@dmdirc.com>
Update submodules: plugins (new commits)

plugins:
    3140d86 Chris Smith <chris@dmdirc.com>
            DI more things.

            Gerrit: http://gerrit.dmdirc.com/2922

Change-Id: I5e5d84880ea16b88289c88be4117c2d866783e26