Release v11

let opencv2 work on old wasm runtime

Release v10

disable rtti and exceptions on webassembly

Release v9

fix build

Release v8

drop opencv 1.x headers for ios package

Release v7

fix patch oops

Release v6

fix imdecode

Release v5

fix build

Release v4

fix ios build

Release v3

disable thread-local

Release v2

Update README.md