[RPL/2] 4.0.22 is out

[BERTRAND Joel]

	Hello,

	RPL/2 4.0.22 is out. 4.0 branch is now in maintenance state, but don't 
try 4.1 as 4.1 doesn't compile.

Changelog :
- by default, RPL/2 uses "NONE" IMPLICIT when it's started in batch mode 
and "ALL" IMPLICIT when it runs in interactive mode;
- when "NONE" IMPLICIT is set, STO intrinsic raises an error when it is 
used to create or modify a global variable. Now, with "NONE" IMPLICIT, 
you have to use SAVE to manipulate global variables;
- replace erroneous TAB by TBL in evaluation() and formateur_fichier()
subroutines;
- fix major memory access violation in evaluation subroutine. Only 
occurs when 'X(i,j)' is evaluated on a matrix and when (i,j) points out 
of bounds;
- fix major bug in evaluation subroutine. 'X(i)' returns execution error
when X was a vector or a table.

	Best regards,

	JKB