Tunnocks caramel wafer

(sorry forgot a release for 1.7.6 so here's two-in-one)

1.7.7 - Caramel wafer

• Support hosc 0.19 in test suite @yaxu

1.7.6 - Tunnocks

• Fix dot shorthand in int patterns so floating point numbers raise an error @ndr-brt
• Support factors in ratio shorthand for rational patterns @ndr-brt
• support hosc 0.19 @yaxu