Standardize artifact names - include platform name (#1539)

* Standardize artifact names

// FREEBIE

* Update name of windows asset in Grunt fetch-release task

FREEBIE

Gruntfile.js

@@ -286,7 +286,7 @@ module.exports = function(grunt) {
       zip: 'signal-desktop-' + package_json.version + '.zip',
       extractedTo: 'linux'
     }, {
-      zip: 'Signal-Setup_' + package_json.version + '.zip',
+      zip: 'Signal-win-' + package_json.version + '.zip',
       extractedTo: 'windows'
     }];
 

package.json

@@ -57,6 +57,7 @@
   "build": {
     "appId": "org.whispersystems.signal-desktop",
     "mac": {
+      "artifactName": "${productName}-mac-${version}.${ext}",
       "category": "public.app-category.social-networking",
       "icon": "build/icons/mac/icon.icns",
       "publish": [
@@ -80,7 +81,7 @@
     },
     "win": {
       "asarUnpack": "node_modules/spellchecker/vendor/hunspell_dictionaries",
-      "artifactName": "${productName}-Setup_${version}.${ext}",
+      "artifactName": "${productName}-win-${version}.${ext}",
       "certificateSubjectName": "Signal",
       "publisherName": "Signal (Quiet Riddle Ventures, LLC)",
       "icon": "build/icons/win/icon.ico",