Merge pull request #1 from weixiaobo88/master

Merge #2 make spring works
jtong - add user management ui
jtong - add db seed, list users in table
jtong - add select all feature
jtong -batch delete
Merge pull request #2 from weixiaobo88/master

Merge #3 add new api
Merge pull request #2 from jtong-kata/master

add one page application implement