Initial implementation of an elasticsearch indexer in Go

Closes #1 (closed)

elastic/client.go

@@ -88,3 +88,11 @@ func (c *Client) Flush() error {
 func (c *Client) IndexCommit(indexName string, commit interface{}) error {
 	return fmt.Errorf("TODO")
 }
+
+func (c *Client) IndexBlob(indexName string, blob interface{}) error {
+	return fmt.Errorf("TODO")
+}
+
+func (c *Client) RemoveBlob(indexName string, blob interface{}) error {
+	return fmt.Errorf("TODO")
+}