Allow GetJSON to take a URL as a single argument #57
Description
Currently GetJSON expects the first argument to be an HTTP method ('GET', 'POST', etc) and the second argument to be a URL. This extension would allow for an implied 'GET' if GetJSON is passed a single string. The following logic is used:
If the argument is a single string, since a URL has to have some non-alphabetic characters (e.g. '.' in the domain name):
- If the string is empty or consists only of alphabetic characters, issue a "No URL supplied" error
- Otherwise attempt to retrieve the resource using the HTTP GET method.