Update submodules: plugins (new commits)

plugins:
    65918db Chris Smith <chris@dmdirc.com>
            Basic tests for the conditional execute command.

            Gerrit: http://gerrit.dmdirc.com/3202

Change-Id: I0f8044083bc19e1db0b9d025bde732e9d077e400
Use the right path for clover license...

Change-Id: I6a596983ae9ac2bd94842056d22904e0efd4b7c1
Reviewed-on: http://gerrit.dmdirc.com/3203
Reviewed-by: Greg Holmes <greg@dmdirc.com>
Automatic-Compile: DMDirc Build Manager