Create css_path during installation.

Makefile.am

@@ -108,7 +108,7 @@ installdir:
 	done
 	@echo "Creating writable directories"
 	-@for dir in $(expldir) $(spooldir) $(bouncedir) $(arcdir) $(piddir) \
-		$(staticdir) $(staticdir)/js $(sysconfdir); do \
+		$(sysconfdir); do \
 		if [ ! -d $(DESTDIR)$$dir ] ; then \
 			echo "Creating $(DESTDIR)$$dir"; \
 			$(INSTALL) -d -m 755 $(DESTDIR)$$dir; \

www/Makefile.am

@@ -422,4 +422,13 @@ EXTRA_DIST = $(nobase_static_DATA)
 install-data-hook:
 	cd $(DESTDIR)$(staticdir); \
 	rm -f external/foundation/js/vendor/jquery.js
+	@echo "Creating writable directories"
+	-@for dir in $(staticdir)/css; do \
+		if [ ! -d $(DESTDIR)$$dir ] ; then \
+			echo "Creating $(DESTDIR)$$dir"; \
+			$(INSTALL) -d -m 755 $(DESTDIR)$$dir; \
+		fi; \
+		chown $(USER) $(DESTDIR)$$dir; \
+		chgrp $(GROUP) $(DESTDIR)$$dir; \
+	done