Add compatibility layer for new connect/send (fixes tomgco#43)

lib/staticGzip.js

@@ -19,6 +19,16 @@ try {
 } catch (e) {
 	staticSend = require('express').static.send;
 }
+if (!staticSend) {
+  // hack for the new connect where .send is extracted
+  // to send library and the helper is no longer directly exposed
+  staticMiddleware = require('connect').static;
+  staticSend = function(req, res, next, options) {
+    return staticMiddleware(
+      options.root, options
+    )(req, res, next);
+  }
+}
 
 /**
  * Strip `Content-*` headers from `res`.
@@ -105,6 +115,7 @@ exports = module.exports = function staticGzip(dirPath, options){
 			var o = Object.create(options);
 			o.path = name;
 			o.maxAge = clientMaxAge;
+			o.root = dirPath;
 			staticSend(req, res, next, o);
 		}