use best practices for link tool and use proper method name in demo2 and demo3
use best practices for link tool and use proper method name in demo2 and demo3

git-svn-id: 08feff1e20460d5e8b75c2f5109ada1fb2e66d41@494142 13f79535-47bb-0310-9956-ffa450edef68

apache/velocity-tools,apache/velocity-tools