removed two conveinence scripts

these scripts were remnants of the movve from the ngrm repo
they are replaced by 'make start' and 'make load'
removed an unnecessary check for a NULL payload

the payload was never utilized and the check was causing a crash
added some debug messages to sim_sched
added a new conf for hype with io value

also added a reference to the new conf file in the simulator Makefile.  This should mean 'make start' and 'make load' should work completely now