The following changes should make the manual more available, and easier
to understand:
1) "make dist" and "make install" will now include all translations of
the manual.
1) A "freedoom-" prefix will be used in all cases in place of just
"manual".
2) All languages will have a two letter suffix, so English is now
"-en".
3) Only the PDF specified will be built when invoked in the top level
directory. For example:
make manual/freedoom-manual-en.pdf
Some of the table columns were not large enough to fit the text, or the words themselves were too big when smaller words would have done.
Lots of single-word lines at the ends of paragraphs.
Removed a bit of redundant information.
Vital links in the submitting/visiting sections needed to have visible URLs in case one really did print them out.
Added a copy of the BSD licence and a link to the website.
This seems like a better choice for the manual since it is a "booklet"
size similar to the original Doom manual, rather than a "full page"
size that is rather unusual for a book.
Several changes are needed to allow asciidoctor to successfully produce
a PDF. The main change is to set a bunch of images to 100% width,
especially in tables where this means "100% of cell width". This allows
the tables to scale down successfully to the smaller size. I have also
adjusted the column widths of various tables to accommodate the smaller
size without the text wrapping awkwardly.
