* libguile/load.c (scm_ellipsis): New Variable.
(scm_parse_path_with_ellipsis): New procedure.
(scm_init_load): Initialize 'scm_ellipsis'.
(scm_init_load_path): Use 'scm_parse_path_with_ellipsis' to
handle GUILE_LOAD_PATH and GUILE_LOAD_COMPILED_PATH.
* libguile/load.h (scm_parse_path_with_ellipsis): Add prototype.
* doc/ref/guile-invoke.texi (Environment Variables):
doc/ref/api-evaluation.texi (Load Paths): Add documentation.
Correct description of default load path to reflect reality.
Remove 'GUILE_LOAD_PATH' from the concept index; it is already
in the variable index. Add cross references between these two
sections of the manual.
* module/ice-9/command-line.scm (*usage*): Attempt to suggest that
`--no-debug' doesn't inhibit debugging support.
* doc/ref/guile-invoke.texi (Command-line Options): Make it clear that
`--no-debug' doesn't inhibit debugging support. Reported by Manuel
Serrano.
* doc/ref/guile.texi (Programming in Scheme):
* doc/ref/scheme-scripts.texi (Guile Scripting): Moved "Invoking Guile"
to its own file.
* doc/ref/guile-invoke.texi (Invoking Guile): Initial revision. This
file contains the former section "Invoking Guile" that was included in
the chapter "Programming in Scheme" as a subsection named
"Command-line Options." It also includes a new subsection "Environment
Variables," which describes those variables that can be set in the
operating system before Guile is started and which affect Guile's
run-time behavior.
