add simple gate/player
add db
add some cmds
fix a bug in select
fix bug in player
fix bug in db change driver
modification for flush db
add db.go
chang names for db/player
rm .a file
change userdata to user
seperate db/types
change names in cmds
add types
fix a bug in timer
add chan to sync timer events
remove unused sql driver
add sql dumper
add uint and string escape for sql dump
camelcase <=> underscore
dump/load capability for sql,  like orm