Call mode description

1. ALL URI start with “https://www.bitstar.com/api/v1/” 。

2. The return value format is Json String。

3. Business related parameters put in the URI，and the user authentication parameters put in the Params，
   Access to public information using the Get mode, don't need to add authentication parameters，
   Personal information acquisition and business operation using Post mode, and need to add authentication parameters。

4. The authentication parameters include accessKey parameter and signData parameter
   accessKey need to add in the web application,and get the SecretKey。

5. signData parameter generating mode：
   [signData] = Md5 ( [URI]+’/’+[SecretKey] )，
   and the [URI] start with “/api/v1/”，not include “https://www.bitstar.com”。