Increased verbosity of compression

This will ensure we have insight into what's actually happening when we run `make static`.

Makefile

@@ -35,7 +35,7 @@ help:
 static:
 	$(NODE_BIN)/r.js -o build.js
 	python manage.py collectstatic --noinput
-	python manage.py compress -v0 --force
+	python manage.py compress -v3 --force
 
 clean_static:
 	rm -rf course_discovery/assets/ course_discovery/static/build/