路由配置文件改到 /routes/index.js当中
博客的路由配置
连接MongoDB  安装相关插件，和链接配置库的配置信息
Merge branch 'master' of https://github.com/sumaolin/blog

Conflicts:
	models/db.js
	node_modules/mongodb/.travis.yml
	node_modules/mongodb/CONTRIBUTING.md
	node_modules/mongodb/Readme.md
	node_modules/mongodb/lib/mongodb/admin.js
	node_modules/mongodb/lib/mongodb/auth/mongodb_cr.js
	node_modules/mongodb/lib/mongodb/collection.js
	node_modules/mongodb/lib/mongodb/commands/db_command.js
	node_modules/mongodb/lib/mongodb/commands/query_command.js
	node_modules/mongodb/lib/mongodb/connection/base.js
	node_modules/mongodb/lib/mongodb/connection/connection.js
	node_modules/mongodb/lib/mongodb/connection/mongos.js
	node_modules/mongodb/lib/mongodb/connection/repl_set/ha.js
	node_modules/mongodb/lib/mongodb/connection/repl_set/repl_set.js
	node_modules/mongodb/lib/mongodb/connection/repl_set/repl_set_state.js
	node_modules/mongodb/lib/mongodb/connection/server.js
	node_modules/mongodb/lib/mongodb/connection/url_parser.js
	node_modules/mongodb/lib/mongodb/cursor.js
	node_modules/mongodb/lib/mongodb/db.js
	node_modules/mongodb/lib/mongodb/gridfs/gridstore.js
	node_modules/mongodb/lib/mongodb/gridfs/readstream.js
	node_modules/mongodb/lib/mongodb/mongo_client.js
	node_modules/mongodb/lib/mongodb/utils.js
	node_modules/mongodb/node_modules/bson/binding.gyp
	node_modules/mongodb/node_modules/bson/browser_build/bson.js
	node_modules/mongodb/node_modules/bson/ext/bson.cc
	node_modules/mongodb/node_modules/bson/ext/bson.h
	node_modules/mongodb/node_modules/bson/ext/index.js
	node_modules/mongodb/node_modules/bson/lib/bson/bson.js
	node_modules/mongodb/node_modules/bson/lib/bson/objectid.js
	node_modules/mongodb/node_modules/bson/package.json
	node_modules/mongodb/node_modules/kerberos/package.json
	node_modules/mongodb/package.json
	node_modules/mongodb/t.js
	package.json
	routes/index.js
	settings.js