Suppress the customised subdir handler
Remove obsolete file
Suppress the customised shell script handler
Suppress the customised project handler
Suppress the customised files installer

Instead of a using a customised file installer, a new module type is created.
This new module type generic.files can be used to install files or assets.
Remove obsolete ancillary scripts
Fix headers

- Translate dates from French to the C locale used otherwise
- Add missing headers

The date edition was performed using the sed script saved under
Library/Ancillary/translate_date.sed
Merge branch 'topic/rework-build-architecture'
Portably change the date of the TeX product

Closes #165
Set LaTeX search path so that it finds our noweb helper file
Use a more appropriate option analyse
Remove obsolete knobs
Support several linkers

Closes #166
Portably prepare linker path

The Mac OS-X (10.6) linker does not admit spaces between the -L flag
and its path argument.

The -I options for the C compiler are adjusted accordingly; for the sake
of homogeneity.
Merge branches 'topic/langc-shared-objects' and 'topic/texmf-darwin-build'
Do not test for xz compression under Darwin

This compression format is not avaiable under Mac OS X 10.6.
Fix the texmf stamp test

When the test runs several times, a globbing pattern may match several
files and is thus inappopriate.
Register missing file
Replace with-style options by uses-style options
Disable all optional test suites by default