Added the xpcom/sample directory to the build, so I can point people to the minimal XPConnect sample code there without them having to rebuild to try it out.

xpcom/Makefile.in

@@ -31,6 +31,7 @@ DIRS=   typelib        \
         proxy          \
         build          \
         tools          \
+        sample         \
 	$(NULL)
 
 ifdef ENABLE_TESTS

xpcom/makefile.win

@@ -29,6 +29,7 @@ DIRS=   typelib        \
         proxy          \
         tools          \
         build          \
+        sample         \
         tests
 
 include <$(DEPTH)\config\rules.mak>