update readme and package.json
fix assert check
1. add global paramater, 2. more detail test, 3. add BDD test design
1. fix headers send, 2. auto set cookie for request if exists
fix set header (cookie), fix race condition
1. json response check, 2.check each array
1. fix response return value, 2. add release note file
fix revision
add badge
fix badge
1. add informative message, 2. fix headers set (cookie)