Merge pull request #10 from bluedragon1/master

add countdown
Merge pull request #11 from bluedragon1/master

add function to matching firsta position
Merge pull request #12 from bluedragon1/master

add change countdown parameter
add write big line mode
fix z_buffer but some bug are remained
add ScoreViewer
add tab and update ScoreViewer
change paint method and add DataChangeListener
bug fix and update gui_prototype.jar
Merge https://github.com/t-korin/ProjectStudy
add example