Various clean ups for the release.

src/Demos/Makefile

@@ -1,7 +1,10 @@
 #!smake
 SHELL=/bin/sh
 
-DIRS = sgv osgconv osgcube osgreflect osgtexture osgimpostor osgviews osgtext hangglide osgcluster
+DIRS = sgv osgconv osgcube osgreflect osgtexture osgimpostor osgviews hangglide osgcluster
+
+# comment out if you don't have the freetype and GLU1.3 library installed.
+DIRS += osgtext 
 
 all :
 	for f in $(DIRS) ; do cd $$f; $(MAKE) || exit 1; cd ..; done