finalize the receipt

src/main/java/tech/iBeans/POSware/Lite/receipt.java

@@ -81,7 +81,7 @@ public class receipt {
 		return(content);
 	};
 	
-    public static String headers() {
+    private static String headers() {
         /* Generate the headers. 
         */
         
@@ -164,5 +164,18 @@ public class receipt {
 
 		return(data.get("payment"));
 	};
+
+	private static String footer() {
+		data.put("footer", "Thank you for shopping with us. Have a good day. "); // POC. must replace
+		refresh();
+
+		return(data.get("footer"));
+	}
+
+	public static String finish() {
+		footer();
+		refresh();
+		return(content);
+	}
     
 }