* basic::collec() never worked correctly on non-polynomials till now.
We simply correct for the missing terms, which makes it at least
algebraically correct (suggested by Pearu Peterson).
* Added support to print out LaTeX-style, based on some work by Stefan
Weinzierl:
- print.h: added a class print_latex().
- function.pl: added function_options::latex_name() because there was
no good way of setting that name before.
- inifncs*.cpp: use it.
- *.cpp: switch to see if print_context is actually print_latex and
then change the style.
* Fixed some stupid bugs in sections that were #define'd away for gcc-2.95.