ENH: Quieter make install.

makefile

@@ -271,7 +271,7 @@ clean:
 
 .PHONY: unzip
 unzip:
-	for f in $(LIBS_ZIP); do unzip -o -d libs $$f; done
+	for f in $(LIBS_ZIP); do unzip -q -o -d libs $$f; done
 
 
 PYLINT = pylint3 -d all -e E,F