Move browser sniffing into a plugin

core/modules/info/platform.js

@@ -0,0 +1,23 @@
+/*\
+title: $:/core/modules/info/platform.js
+type: application/javascript
+module-type: info
+
+Initialise basic platform $:/info/ tiddlers
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports.getInfoTiddlerFields = function() {
+	var mapBoolean = function(value) {return value ? "yes" : "no"},
+		infoTiddlerFields = [];
+	// Basics
+	infoTiddlerFields.push({title: "$:/info/browser", text: mapBoolean(!!$tw.browser)});
+	return infoTiddlerFields;
+};
+
+})();

editions/tw5.com/tiddlywiki.info

@@ -4,7 +4,8 @@
 		"tiddlywiki/fullscreen",
 		"tiddlywiki/googleanalytics",
 		"tiddlywiki/nodewebkitsaver",
-		"tiddlywiki/github-fork-ribbon"
+		"tiddlywiki/github-fork-ribbon",
+		"tiddlywiki/browser-sniff"
 	],
 	"themes": [
 		"tiddlywiki/vanilla",

plugins/tiddlywiki/browser-sniff/bowser/tiddlywiki.files

@@ -4,7 +4,7 @@
 			"file": "bowser.js",
 			"fields": {
 				"type": "application/javascript",
-				"title": "$:/core/modules/info/bowser/bowser.js",
+				"title": "$:/plugins/tiddlywiki/browser-sniff/bowser/bowser.js",
 				"module-type": "library"
 			}
 		}

plugins/tiddlywiki/browser-sniff/browser.js

@@ -1,5 +1,5 @@
 /*\
-title: $:/core/modules/info/browser.js
+title: $:/plugins/tiddlywiki/browser-sniff/sniff.js
 type: application/javascript
 module-type: info
 
@@ -16,10 +16,9 @@ exports.getInfoTiddlerFields = function() {
 	var mapBoolean = function(value) {return value ? "yes" : "no"},
 		infoTiddlerFields = [];
 	// Basics
-	infoTiddlerFields.push({title: "$:/info/browser", text: mapBoolean(!!$tw.browser)});
 	if($tw.browser) {
 		// Mappings from tiddler titles (prefixed with "$:/info/browser/") to bowser.browser property name
-		var bowser = require("$:/core/modules/info/bowser/bowser.js"),
+		var bowser = require("$:/plugins/tiddlywiki/browser-sniff/bowser/bowser.js"),
 			mappings = [
 				["name","name","unknown"],
 				["version","version"],

plugins/tiddlywiki/browser-sniff/plugin.info

@@ -0,0 +1,6 @@
+{
+	"title": "$:/plugins/tiddlywiki/browser-sniff",
+	"description": "Browser sniffing for TiddlyWiki",
+	"author": "JeremyRuston",
+	"core-version": ">=5.0.0"
+}