Eccenca Message Bus for inter-component and in-app communications

ecc-messagebus exports a normal rxmq.js instance but with a set of additional functions.
For convenience it also exports Rx so that we can use a fixed Rx version in all components.

Using Rx

``js
import {Rx} from 'ecc-messagebus';

var source = Rx.Observable.just(42);

var subscription = source.subscribe(
function (x) {
console.log(Next: ${x}');
},
function (err) {
console.log(Error: ${err});
},
function () {
console.log('Completed');
});

// => Next: 42
// => Completed

``

Using request-response

Request-response pattern can be used like so:

`js
import rxmq from 'ecc-messagebus';
// ...
// get channel
const channel = rxmq.channel('yourChannel');
// subscribe to topic
channel.subject('someTopic').subscribe(({data, replySubject}) => {
// ...
// use envelop.reply to send response
replySubject.onNext({some: 'response'});
replySubject.onCompleted();
});
// ...
// initiate request and handle response as a promise
channel.request({
topic: 'someTopic',
data: {test: 'test'},
timeout: 2000
})
.subscribe((data) => {
// work with data here
// ...
},
(err) => {
// catch and handle error here
// ...
});
``