Chaining tool

Fast way to create chain of responsibility

##Install
``
npm install chaining-tool
`

##Usage
`javascript
var Chain = require('chaining-tool');

var chain = new Chain();

chain.add(function(context, next){
//Do somethong with context
next(); //Next handler
});

chain.add(function(context, next){
//Do somethong with context
next(false); //Interrupt
});

var context = {"some" : "data"};

chain.start(context,
function(context) {
//success
},
function(context) {
//interrupted
}
);
``