added restful-server
deleted unintentionally commited dir
deleted unintentionally commited dir
deleted unintentionally commited file
divided tileUtil.js to tileUtil.js and tileDrawing.
Changed tile drawing implementation.
added css file.
fixed html layout.
implemented to show dora.
added prefix to operation function name in order to make it understandable.
changed filename.
added necessary fixes as for previous file name change commit.
implemented chow;
implemented pong and steal-kong.
fixed bugs about huro.
implemented richi.
fixed message on tumo.
Modifid function and variable name.
Deleted unused function.
Fixed bug about deleting discarded tile.
Add alert message when the round is finished.
Removed unused html file.