Prepare to release crosstool-ng-0.0.4.

scripts/showSamples.sh:
- revert sample dumping to not show the components versions;

docs/overview.txt:
- reorder docs/overview.txt so that configuring comes before running,
- tell about regtest;

Makefile:
config/global.in:
- point to docs/overview.txt for the list of steps;

Add intermediate mesages when building regtests.
Distclean the repository after each sample during regtests.

Add the "regtest" make target: call "make regtest", and all samples wil be built, and a tarball made for each of them. First sample to fail causes the test to stop.

scripts/functions is responsible for initiating the log file.
Users of the log facility are in charge to use, move, delete this log file, now.

Fix printing components' file names.

Answer default values when doing a defoldconfig.

When doing a silent old config, don't check if stdin was redirected. ct-ng doesn't use this feature, and even better yet, it makes explicit use of redirecting both stdin and stdout at aome moments.

Add a function to print each component's filename: this eases building the tarball of the generated toolchain.
Hard-link the libfloat tarball instead of soft-link: this also eases building the afore-mentioned tarball.

When searching a matching extension for a file, also check for the empty extension.

Rework the generated config file handling.

Don't go menuconfig if no .config present.
Handle the case where targets does not exist when calling distclean.

dd the two latest versions of the linux kernel.

Add two te;plates on how to add a new tool/debug facility.

Stale log files are now named "log.*", not "*.log".

Small eye-candy fix.

Be a little more explicit when the user wants to restart a non-restartable build.

Revert revision 201: renaming the two cc_core passes was a bad idea.

scripts/build/libc_glibc.sh:
- clean up addons list creation,
- make NPTL work again with this.

Rename two steps to their real names:
- cc_core_pass_1 is really cc_core_static,
- cc_core_pass_2 is really cc_core_shared.

Add the first tool facility: sstrip.

Introduce the notion of tols facilities (none so far, sstrip coming right away...).

Kill duplicated help text.

Messages from the downloaders should be tagged ALL, not DEBUG.

Small fix in the log level when dumping the last messages (elapsed time).

Threading model does not belong to the target sub-menu, but to the toolchain sub-menu.

Fix and enhance the STOP/RESTART facility.

Fix comment about glibc's extra addons config option.

Don't start a state restoration if it is not available.
Fortuitly discovered that $SECONDS is inherited from shell to sub-shells. Good!

Fix libfloat when calling the compiler:
- when not compiling NPTL, the shared core C compiler does not exist,
- PATH arranges for the shared core C compiler to be found before the static one, so no need to force it.