Adds the following methods for groups:

- index() - https://api.onthecity.org/docs/admin#groups_index
- show() - https://api.onthecity.org/docs/admin#groups_show
will this work instead? it's a bit more readable.


index: function(successCallback, errorCallback) {
    thecityRequest('/groups', successCallback, errorCallback);
    },
index: function(params, successCallback, errorCallback) {
  thecityRequest('/groups?' + querystring.stringify(params), successCallback, errorCallback);
},