[RPL/2] RPL/2 4.1.7

[BERTRAND Joël]

Hello,

New RPL/2 release with some features/bug fixes :
- double quote is escaped in INPUT and PROMPT intrinsic functions;
- error is returned (instead of warning) when unavailable intrinsic 
function is called;
- lot of minor bugs have been fixed;
- ncurses and file are patched;
- RPL/2 can now be cross compiled (until .deb archive generation);
- all table, vector and matrix dimensions are now treated as unsigned 
long;
- recherche_type() function is modified to use cached memory;
- gnuplot is upgraded to 4.6.0.

Best regards,

JKB