adding option to append PID to output filename
fix bug in loopunrolling
Merge branch 'master' of rosecompiler1.llnl.gov:rose/edg4x/rose into dbg

Conflicts:
	src/ROSETTA/Grammar/Support.code
_getpid() for Windows
add windows header
Merge branch 'master' of rosecompiler1.llnl.gov:rose/edg4x/rose into dbg