Make all the things final.

Change-Id: I0c128522391d4de8452c603fae89d260c1a34ec2
Reviewed-on: http://gerrit.dmdirc.com/3836
Reviewed-by: Greg Holmes <greg@dmdirc.com>
Automatic-Compile: DMDirc Build Manager
Update submodules: util (new commits)

util:
    40a3a41 Chris Smith <chris@dmdirc.com>
            Final the couple of things.

            Gerrit: http://gerrit.dmdirc.com/3838

Change-Id: I2932c8705a87d719dec74c2e64af402a380dfe10