[RPL/2] RPL/2-4.0.0.prerelease.1

[BERTRAND Joël]

	Hello,

	New release with some code rewritten from scratch an,d some fixes :
- library management is rewritten from scratch. EXTERNAL is removed and
EXTERNALS is added. Now, all exported symbols are sent to RPL/2 when
library is loaded.
- OPEN arguments are changed (to prepare SOCKET support);
- number of arguments is verified in analyse_algebrique().
'SIN(A+X,2)' is now refused because SIN requires only one argument;
- all but lapack symbols are exported from librpl with librpl, f77 or 
f90 prefix;
- minor bug is fixed in formateur() (AND and OR requires parenthesis);
- rplexternals.h header file is added; Now, it is very easy to write
external functions;
- memory leak is fixed in analyse_algebrique();
- minor bug (symbole flag) is fixed in sequenceur.c and types.c;
- temp file was not removed when an error occurs in EDIT or VISIT;
- 'name' should not returned a function ("FCT" object);
- -rdynamic is added to src/Makefile.am.

	Regards,

	JKB