[CM] grace build uses scons

[Rick Taube]

ive switched grace from gnu's configure/make to SCons:

	cvs checkout grace
	cd grace
	scons JUCEDIR=/path/to/juce
	scons install
	
of course, you need to have scons for this to work:

	http://www.scons.org/download.php	
	http://www.python.org/download/	

you only need to specify the JUCEDIR the first time you build. ive  
tested on planetccrma, mac/ppc mac/intel.