lazycat-daemon/main.scm (main): Move to lazycatd.scm.

Move `main' procedure to lazycatd.scm.  Do all arguments parsing
and start the LazyCat daemon in lazycatd.scm.  Remove extra
main.scm file.

* lazycat-daemon/lazycatd.scm (main): New procedure.
  (print-help): New procedure.
* lazycat-daemon/lazycat-daemon.c (inner_main): Call `main' from
  the lazycatd module.
* lazycat-daemon/main.scm: Remove.