- Automatically flush stderr when writing debug infos

 * po-hi-c/src/po_hi_task.c
   po-hi-c/include/po_hi_task.h
   - Add the __po_hi_tasks_killall function to terminate
     all application threads.

 * po-hi-c/src/po_hi_main.c
   - Force threads to be cancellable so that we are able
     to terminate them when a given period of time is reached.
 
 * po-hi-c/src/po_hi_gqueue.c
   - More debug information

 * po-hi-c/share/make/Makefile.common
   - Add more information about the RTEMS_MAKEFILE_PATH
     variable

 * po-hi-c/src/drivers/po_hi_driver_linux_serial.c
   - Fix bug #0000028




git-svn-id: https://tecsw.estec.esa.int/svn/taste/trunk/po-hi-c@1485 129961e7-ef38-4bb5-a8f7-c9a525a55882