fix/issue-612-recommended-way-of-binding-specific-func

fix/issue-458-cannot-assign-string-to-function-that-ex

fix/issue-633-bug-stack-overflow-due-to-infinite-recur

fix/issue-693-add-emscripten-embind-bindings-for-get-s

fix/issue-493-shared-pointers-in-chaiscript-cannot-be-