Improved Docs

[braydonf]

• Include better description of parameters, for example "rejectUnauthorized" translates into "strict ssl cert checking" and "secure" translates into "https" or "http"
• Full description of parameters, "getnewaddress" does not have any parameters and thus the first argument is a callback, however in other situations it is the second argument. possibly consider improving the api, so that this can be discovered easily and is more intuitive
• Document common methods such as "sendrawtransaction"
• Add better jsdocs
• Add link to list of api methods, such as: https://en.bitcoin.it/wiki/Original_Bitcoin_client/API_Calls_list