Merge pull request #25 from jeffcao/ruitong_ui

change rank/progressbar UI
Merge pull request #27 from jeffcao/ruitong_ui

Modify UI
fix ui
Merge branch 'ruitong_ui' of github.com:edwardzhou/lua_study into ruitong_ui
Merge pull request #10 from edwardzhou/ruitong_ui

fix ui