[RPL/2] RPL/2 4.1.0.prerelease.3

[BERTRAND Joel]

	Hello,

	Some news. Lot of bugs have been fixed since 4.1.0.prerelease.0. 
RPL/CAS integration is now done and INT intrinsic function is able to 
use RPL/CAS to compute symbolic integration :

RPL/2> 'sin(X)*cos(X)'

1: 'SIN(X)*COS(X)'
RPL/2> 'X' int

1: '1/2*(SIN(X))^2'
RPL/2>

	I have to fix some minor mistakes in INT (integration of constant 
functions returns type error). Nevertheless, I consider that all 
modifications I have done since 4.0 branch are stable enough to replace 
all 4.0 releases by new 4.1 ones.

	Please test. Without bug report, I will announce 4.1 branch as new 
stable branch in the next few days.

	Regards,

	JKB