Issue 5315 - Add support for Microsoft Edge

README.md

 Adblock Plus for Chrome, Opera, Microsoft Edge and Firefox
 ==========================================================
 
 This repository contains the platform-specific Adblock Plus source code for
 Chrome, Opera, Microsoft Edge and Firefox. It can be used to build
 Adblock Plus for these platforms, generic Adblock Plus code will be extracted
 from other repositories automatically (see _dependencies_ file).
 
 Note that the Firefox extension built from this repository is the new
 [WebExtension](https://developer.mozilla.org/en-US/Add-ons/WebExtensions).
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 ### Building the extension
 
 Run one of the following commands in the project directory, depending on your
 target platform:
 
     ./build.py -t chrome build -k adblockpluschrome.pem
     ./build.py -t edge build
     ./build.py -t gecko-webext build
 
 This will create a build with a name in the form
-_adblockpluschrome-1.2.3.nnnn.crx_, _adblockplusedge-1.2.3.nnnn.appx_ or _adblockplusfirefox-1.2.3.nnnn.xpi_.
+_adblockpluschrome-1.2.3.nnnn.crx_, _adblockplusedge-1.2.3.nnnn.appx_ or
+_adblockplusfirefox-1.2.3.nnnn.xpi_.
 
 Note that you don't need an existing signing key for Chrome, a new key
 will be created automatically if the file doesn't exist.
 
 The Microsoft Edge build _adblockplusedge-1.2.3.nnnn.appx_ is unsigned and
 is only useful for uploading into Windows Store, where it will be signed. For
 testing use the devenv build.
 
 The Firefox extension will be unsigned, and therefore is mostly only useful for
 upload to Mozilla Add-ons. You can also also load it for testing purposes under
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 Linting
 -------
 
 You can lint the code using [ESLint](http://eslint.org).
 
     eslint *.js lib/ qunit/ ext/ chrome/
 
 You will need to set up ESLint and our configuration first, see
 [eslint-config-eyeo](https://hg.adblockplus.org/codingtools/file/tip/eslint-config-eyeo)
 for more information.