v80: v0.1.3

In a spectacular case of not seeing the woods for the trees, the expression parser wasn't evaluating anything more than a single operator and ignoring the rest of the expression. Unary operators were also not working due to expected registers changing at some point.

v80 now assembles itself byte-for-byte compared to the WLA-DX version meaning there should be no more surprise bug-fix releases, and a v80 version of v80 will be coming with v1.0!