added a router
added a controller
Merge branch 'master' of https://github.com/yanghua/FixedAssetManager_Server

Conflicts:
	controllers/fixedAsset.js
	routes.js
added excel module
Merge branch 'master' of https://github.com/yanghua/FixedAssetManager_Server

Conflicts:
	controllers/fixedAsset.js
	routes.js