Attribute extractor added. HTML extractor added. Outer HTML Extractor added.

exporter package renamed to export, extractor package renamed to extract for simplicity.

export/json_test.go

@@ -0,0 +1,16 @@
+package export
+
+import "testing"
+
+func TestJSONExporter_Export(t *testing.T) {
+	ch := make(chan interface{})
+	defer close(ch)
+
+	exporter := &JSON{
+		FileName: "out.json",
+		Indent:   " ",
+	}
+	go exporter.Export(ch)
+
+	ch <- map[string]string{"key": "value"}
+}