SAAS-157: Automated metrics: gather info about soundcloud usage

-done

airtime_mvc/build/sql/schema.sql

@@ -123,6 +123,7 @@ CREATE TABLE "cc_files"
 	"soundcloud_error_code" INTEGER,
 	"soundcloud_error_msg" VARCHAR(512),
 	"soundcloud_link_to_file" VARCHAR(4096),
+	"soundcloud_upload_time" TIMESTAMP(6),
 	PRIMARY KEY ("id"),
 	CONSTRAINT "cc_files_gunid_idx" UNIQUE ("gunid")
 );