ui/lc.scm: Update comments.

* ui/lc.scm: Update file commentary.  Fix tautology in comments.
Improve usage of the Guile module system.

* Makefile.am: Replace AM_CPPFLAGS with AM_CFLAGS.  Use datadir as
  GUILE_LOAD_PATH.  Rename lazycatd to lazycat-daemon.  Cleanup.
* Makefile.in: Update.
* server/server.c: Use setenv call to set GUILE_LOAD_PATH.
* server/scm/host-list.scm, server/scm/lazycatd.scm,
  server/scm/main.scm, ui/lazycat-gtk.scm, ui/lc.scm: Remove
  load-from-path calls.