Progress on capabilities

Capabilities will be shared among collection of threads. A pager
will have a right to share its own capabilities with its space,
its thread group and its container.

Currently sharing is possible with only all of the caps. Next,
it will be support for cap splitting, granting, and partial sharing
and granting.

tools/replace_words

@@ -5,18 +5,20 @@ replacement=(w x y z)
 
 # Test that we have both arguments
 if [ -z "$1" ]; then
-	echo Usage: replace_words ORIGINAL REPLACEMENT
+	echo Usage: replace_words DIRNAME ORIGINAL REPLACEMENT
 	exit
 fi
 
 for ((i=0;i<1;i++));
 do
 
-	orig=${original[$i]}
-	repl=${replacement[$i]}
-	echo $orig to $repl
+	#orig=${original[$i]}
+	#repl=${replacement[$i]}
+	orig=$2
+	repl=$3
 	for filename in `find $1 -name '*.[ch]'`
 	do
+		echo Replacing $orig with $repl in $filename
 		sed -i -e "s/$orig/$repl/g" $filename
 	done
 done