Added text_title and text_instructions parameters for customising the scanner view's title and instructions texts (Android only in this commit)

www/zBar.js

@@ -8,6 +8,11 @@ ZBar.prototype = {
     scan: function (params, success, failure)
     {
         argscheck.checkArgs('*fF', 'CsZBar.scan', arguments);
+
+        params = params || {};
+        if(params.text_title === undefined) params.text_title = "Scan QR Code";
+        if(params.text_instructions === undefined) params.text_instructions = "Please point your camera at the QR code.";
+
         exec(success, failure, 'CsZBar', 'scan', [params]);
     },