Deployment: No longer use CI windows assets, include about.html (#1564)

* Include about.html in production Electron build

* Remove windows from fetch-release task, fix permissions

We no longer use the pre-built assets from AppVeyor for our Windows
build.

* AppVeyor: Remove capture/upload of built assets

Gruntfile.js

@@ -285,9 +285,6 @@ module.exports = function(grunt) {
     var files = [{
       zip: 'signal-desktop-' + package_json.version + '.zip',
       extractedTo: 'linux'
-    }, {
-      zip: 'Signal-win-' + package_json.version + '.zip',
-      extractedTo: 'windows'
     }];
 
     var extract = require('extract-zip');

appveyor.yml

@@ -22,12 +22,5 @@ test_script:
   - node build\grunt.js test-release:win
   - node build\grunt.js test
 
-artifacts:
-  - path: dist/*.*
-
 environment:
   SIGNAL_ENV: production
-
-deploy:
-  provider: Environment
-  name: signal-desktop-builds

fix_broken_perms.sh

@@ -1,6 +1,4 @@
 set -e
 find release/linux -type d | xargs chmod 755
 find release/linux -type f | xargs chmod 644
-find release/windows -type d | xargs chmod 755
-find release/windows -type f | xargs chmod 644
 chmod +x release/linux/signal-desktop

package.json

@@ -121,6 +121,7 @@
       "config/${env.SIGNAL_ENV}.json",
       "config/local-${env.SIGNAL_ENV}.json",
       "background.html",
+      "about.html",
       "_locales/**",
       "protos/*",
       "js/**",