* guix-kernel/jupyter-client.scm: Rename to...
* jupyter/servers.scm: ... this.
(KERNEL-INFO, guile-version): Remove.
(json->kernel): Rename to...
(connection-file->kernel): ... this.
* guix-jupyter-container.scm: Adjust accordingly.
* guix-jupyter-kernel.scm (KERNEL-INFO): New variable.
(kernel): Use new 'connection-file->kernel' name.
* Makefile.am (SOURCES): Adjust file list accordingly.