Issue 5085 - Add edgeInfo.js template for edge specific builds

templates/edgeInfo.js.tmpl

 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 "use strict";
-
-
-let [app, platformVersion] = /(\S+)\/(\S+)(?:\s*\(.*?\))?/g.exec(navigator.userAgent);

[Sebastian Noack, 2017/06/07 13:26:13]

Obviously, you didn't test that code. At very least you could have tried out the
regexp on a real user agent string, if you don't care to run MS Edge:
https://stackoverflow.com/questions/30591706/what-is-the-user-agent-string-na...

[Jon Sonesen, 2017/06/07 13:56:07]

My apologies, I made a mistake in my testing and just was checking the regex
passed but not paying attention to the values. Definitely will be more careful.

-
-// If regular expression fails, still set platformVersion to "0"
-if (!platformVersion)
-  platformVersion = "0";
 
 exports.addonName = {{ basename|json }};
 exports.addonVersion = {{ version|json }};
 
 exports.application = "edge";
 exports.applicationVersion = "0";
 
 exports.platform = "edgehtml"
-exports.platformVersion = platformVersion;
+exports.platformVersion = "0";
+
+let match = /\bEdge\/(\d+(?:\.\d+)?)\b/.exec(navigator.userAgent);
+if (match)
+  exports.platformVersion = match[1];