* Added builder to wasm client
* missing wasm_bindgen macros
* Added constructor macro on GatewayEndpointConfig
* Attempting to use updated wasm client api
* Removing dead code
* Exposed other messages types in wasm client
* cleanup in js-example
* Changed 'self_address' to be a method call
* Removed needless borrow when cloning an Arc
* Improving arguments in 'on_message' callback
* fixed wasm-client dependency/features
Jędrzej Stuczyński