Various Corrections

I'm working on a [Swagger](http://swagger.wordnik.com/) spec for the DNSPod International API. To generate the swagger spec I'm parsing the rst with python. There are a few issues with your current spec that I have corrected to make this process easier:

* Fixed spelling
* Changed full width colons to normal colons
* Unified "URL: and "API Address:" - changed them all to "URL:"
* Unified "Method:" and "HTTP Request Type:" - changed them all to "HTTP Request Type:"
* Normalized formatting of request parameters - bolded all parameter names.
* Corrected common parameters
* Fixed the request parameters for Auth