Add an access log middleware.

middleware/access_log.js, package.json
	-Add middleware for printing out access logs.
	-Add necessary dependencies.

app.js

@@ -1,6 +1,8 @@
 
 var app = require('express')();
 
+app.use( require( './middleware/access_log' ) );
+
 /** ----------------------- middleware ----------------------- **/
 
 app.use( require('./middleware/headers') );

middleware/access_log.js

@@ -0,0 +1,14 @@
+/**
+ * Print out access logs.
+ */
+
+'use strict';
+
+var peliasConfig = require( 'pelias-config' ).generate().api;
+var morgan = require( 'morgan' );
+
+module.exports = peliasConfig.accessLog ?
+  morgan( peliasConfig.accessLog ) :
+  function noop(req, res, next){
+    next();
+  };

package.json

@@ -41,6 +41,8 @@
     "is-object": "^1.0.1",
     "markdown": "0.5.0",
     "pelias-esclient": "0.0.25",
+    "morgan": "1.5.2",
+    "pelias-config": "^0.1.4",
     "pelias-suggester-pipeline": "2.0.2"
   },
   "devDependencies": {