anchor.diff:  --
   
   Retrieve details for a single location.
  -GET /location?q={city}
  +GET /location?q=Minneapolis
   < 200
   < Content-Type: application/json
   {
  
positive.code: 
  
  Retrieve details for multiple locations, using the pipe character (|) as a delimiter.
  Example: Minneapolis, MN|New York, NY|Denver
  GET /location?q={city1|city2|city3}
  < 200
  < Content-Type: application/json
  {
  
negative.code:     }
  }
  
  
  Retrieve details for a single location using JSON_P. Specify a callback parameter. For example: &callback=foo.
  GET /location?q=Minneapolis{&callback}
  < 200
  < Content-Type: text/javascript
  if(foo)foo({
  