- Support of Event Queue in Task Class
- Support of time duration of sleep
- Makes CurrentTcb private member of TaskScheduler class
- Support of display resolution change
- Create "idle task"
- Build process improvement(build floppy image)
- Create dependecy file automatically
- Support of shell 

---------------------------------------------
Following todo item is done.

ver.015
 - Support of task slice time
 - TaskSwitcher definition move to task.cc
 - Support of sleep(Wait/SendEvt)

ver.014
 - Support of task priority

