WP 34S and 31S bugs and fixes

[Bit]

Walter, while checking what the manual says about fraction mode, I noticed that the output of the DECOMP command on the top of page 86 of 374 in the latest printed manual (3.3) is different from what the calculator shows. In the manual it's "x/y >", but in the real device it's "x/y Gt".

I suggest we change the calculator to agree with the manual. The Y register display already uses < and > instead of Lt and Gt because space is tight. This way DECOMP would be consistent with that as well. Please comment.