Skipping response body validation in hooks

[netmilk]

Hey, this is a little workaround solution how to skip body validation for some particular transaction using hooks. I'm considering making it part of the documentation.

var hooks = require('hooks');


// Names of transactions to skip the body validation
// Available tranasction names can be listed with `dredd --names`
skipBodyValidation = ['Emergency > Call first aid'];

skipBodyValidation.forEach(function(transactionName){
  hooks.beforeValidation(transactionName, function(transaction){
    hooks.log('Skipping body validation for transaction "'+ transactionName +'".');
    transaction['expected']['body'] = undefined;
    transaction['expected']['bodySchema'] = undefined;
  });
});

[jnj16180340]

This is also a convenient way to work around #883 while not ignoring the test case entirely!