remove unused code.
Merge branch 'master' of https://github.com/rainasmoon/online-application.git
Merge branch 'master' of https://github.com/rainasmoon/online-application.git
Merge branch 'master' of https://github.com/rainasmoon/online-application.git
jmeter test; add cache; hibernate cache; use tomcat-datasource instead
of dbcp.