The issue fixed is that most Lisps don't like
*default-pathname-defaults* being a logical-pathname.
Added a test for logical-pathname functionality;
it all works on CCL, and works better on other Lisps after the fix,
but there are still logical-pathname issues on SBCL, CLISP and more.
Also, a package cleanup of our test suite.

test/script-support.lisp: cl-user::native-namestring already defined in SBCL (imported from sb-ext); don't try to redefine it.

Also, update testing infrastructure to work with latest xcl from git.

Also, use coerce-pathname in asdf-ecl and deprecate merge-component-name-type.

Enable extra debugging while testing (except on allegro personal where it blows up the heap)

Fix link in webpage (lp#614806).
Include SCL and ABCL in my testing routine.

Add tests for configuration files.
Also export enable-asdf-binary-locations-compatibility.

* Fix initialize-output-translations to actually use the environment,
 map output destinations to themselves, and
 actually take a parameter as documented.
* Document same parameter for initialize-source-registry, which did take it.
* Tweak symbols between unintern and fmakunbound
 to make upgrade better on both current SBCL and ECL.
* Tweak run-tests to allow for parametrizable binaries,
 to redirect output to tmp/fasls, to output Lisp command being executed,

Fix ECL compilation workaround.

Add janderson's pathname test script to our test suite.

More documentation updates. More uses of merge-pathnames*.

Try to play well with LOGICAL-PATHNAMEs.
Introduce utility MERGE-PATHNAMES* that tries to do the Right Thing(tm).

One is Debian Bug#457919 found and fixed by Chun TIAN (binghe).
The other is a bug in the test code found by David McClain.

Simplify test scripts.

Signed-off-by: Francois-Rene Rideau <fare@tunes.org>

Signed-off-by: Francois-Rene Rideau <fare@tunes.org>

* made it easier to debug tests. export DEBUG_ASDF_TEST=t
* add ECL support to tests: passes all 18 scripts, but have to ignore compile warnings.
* lots of whitespace issues, including ones that made .gitignore not work!

* work with Common Lisp Controller by disabling it for testing

* tweak test-retry-loading-component test

* tweak test-module-pathnames for CLISP (which can return
  `nil` for component's relative-pathname)

* refactor `component-relative-pathname` for source-file's
  slightly

* apply patch to better handle relative source-file types (from Fare Rideau)

* improve logic of tag updating in bump-revision-and-tag.sh

* make test output nicer (from Fare Rideau)

* improve test-module-pathnames (from Fare Rideau)

* apply patch to better handle relative source-file types (from Fare Rideau)

* improve logic of tag updating in bump-revision-and-tag.sh

* make test output nicer (from Fare Rideau)

* improve test-module-pathnames (from Fare Rideau)

Modified system-definition-pathname to reload system defs even for systems
that cannot be found using one of system finders in *system-definition-search-functions*