Adding Travis support

Author: prathamesh7pute

.travis.yml

@@ -1,3 +1,5 @@
 language: node_js
 node_js:
   - 0.8
+services:
+  - mongodb

example/app.js

@@ -5,7 +5,7 @@ var mongoose = require("mongoose"),
 	Backbone = require("Backbone"),
 	mongooseSync = require("./backbone.mongoose"),
 	config = {
-		db_url: "db_url goes here",
+		db_url: process.env.DB_URL || 'mongodb://localhost/backbone_mongoose_test',
 		schema_dir: __dirname + "/schema"
 	};
 

test/Backbone.mongoose.js

@@ -7,7 +7,7 @@ var mongooseSync = require('../backbone.mongoose'),
 	Backbone = require('Backbone'),
 	mongoose = require('mongoose'),
 	config = {
-		db_url: "db_url goes here",
+		db_url: process.env.DB_URL || 'mongodb://localhost/backbone_mongoose_test',
 		schema_dir: __dirname + "/schema"
 	};