v6.35 [Mar 10, 2013]
o Improve the speed of the evaluation engine by 40%.
o Add feature #93; REMAINDER and MODULO now accept non-integer numbers.
o Fix bug #419; Logo once again throws an error when the instruction list
output by a macro calls an undefined procedure.
o Fix bug #412; The wxWidgets version of FMSLogo now displays a warning
when saving the workspace while a workspace editor is open.
o Fix bug #356; Logo no longer crashes when OUTPUT is not given any inputs.
o Fix bug #133; Logo no longer crashes when marcos output nothing.
o Make SORT stable when sorting with LESSP and BEFOREP, instead of
LESSEQUALP and [OR BEFOREP ?1 ?2 EQUALP ?1 ?2].
o Minor improvements to the manual.
