rename case in playeventHandler

use const in switch case, easyer to search.
garbage collection method.

add  gc clear at video start.
rename timer in ctrbarmanager timer and interface.
Jtracer.sendMessage

new Jtracer log func. if set globalvar.DEBUG, then log.
* DEBUG[0].SET: Page + Flash Log(trace);
* DEBUG[1].SET: local message + Flash Log(trace)
* DEBUG[2].SET: Flash Log(trace)
clean up the code.
Merge branch 'master' into win_zuffy
Merge branch 'win_zuffy'