Merge pull request #216 from robotmay/master

Add support for custom HTTP request headers

lib/geocoder/configuration.rb

@@ -14,6 +14,9 @@ module Geocoder
 
         # use HTTPS for lookup requests? (if supported)
         [:use_https, false],
+        
+        # optionally supply the headers for the HTTP request, e.g. User-Agent
+        [:request_headers, {}],
 
         # HTTP proxy server (user:pass@host:port)
         [:http_proxy, nil],

lib/geocoder/lookups/base.rb

@@ -149,7 +149,7 @@ module Geocoder
           unless cache and body = cache[url]
             client = http_client.new(uri.host, uri.port)
             client.use_ssl = true if Geocoder::Configuration.use_https
-            response = client.get(uri.request_uri)
+            response = client.get(uri.request_uri, Geocoder::Configuration.request_headers)
             body = response.body
             if cache and (200..399).include?(response.code.to_i)
               cache[url] = body