修改schema.js，增加中间件判定
Fix: Error response and error response code
server.js 重定义修正
Schema Altered & Bug fixes

Remove the dummy password hash in /login
Formalize the error response message
Fix error in invocation of DBReady function
finish issue 49-50
修复issue #49 #50 结束issue #51 #52 #53 #54 增加依赖项async
issue 55.暂时为无论批次返回所有申报学生列表.
finished isuue 55
finished issue #56 #57
修改schema，添加templateSchema,修改userSchema.
fixed & close issue #56
finished & close issue #62
finished & closed issue #63
finished issue #58 #59,获取学生信息，上传报表.
finished issue #60,获取周报元信息.
rename report-schema
Update server.js