Pass info object

Use `if` as Swagger UI will add extra padding if passed an empty object

Author: tlvince

README.md

@@ -28,6 +28,8 @@ Configure {swagger-express} as express middleware.
 
 `basePath`        -> The basePath for swagger.js
 
+`info`            -> [Metadata][info] about the API
+
 `apis`            -> Define your api array.
 
 `middleware`      -> Function before response.
@@ -44,13 +46,20 @@ app.configure(function(){
     swaggerJSON: '/api-docs.json',
     swaggerUI: './public/swagger/',
     basePath: 'http://localhost:3000',
+    info: {
+      title: 'swagger-express sample app',
+      description: 'Swagger + Express = {swagger-express}'
+    },
     apis: ['./api.js', './api.yml'],
     middleware: function(req, res){}
   }));
   app.use(app.router);
   ...
 });
-``` 
+```
+
+[info]: https://github.com/wordnik/swagger-spec/blob/master/versions/1.2.md#513-info-object
+
 ## Read from jsdoc
 
 Example 'api.js'

lib/swagger-express/index.js

@@ -235,6 +235,10 @@ function generate(opt) {
   descriptor.swaggerJSON = (opt.swaggerJSON) ? opt.swaggerJSON : '/api-docs.json';
   descriptor.apis = [];
 
+  if(opt.info) {
+    descriptor.info = opt.info;
+  }
+
   opt.apiVersion = descriptor.apiVersion;
   opt.swaggerVersion = descriptor.swaggerVersion;
   opt.swaggerURL = descriptor.swaggerURL;