Use 'platform-arch' naming scheme for downloads (#3998)

* use 'platform-arch' naming scheme for downloads

* do full builds for this branch

* Revert "do full builds for this branch"

This reverts commit 6d539513e7.

* update wrong comments

* chore: test upload getCDN functions

* linting js

* unit test refactored manifest

* linting

scripts/unit/binary/upload-spec.js

@@ -0,0 +1,16 @@
+const snapshot = require('snap-shot-it')
+
+/* eslint-env mocha */
+describe('upload', () => {
+  const upload = require('../../binary/upload')
+
+  context('getRemoteManifest', () => {
+    it('returns object with download urls for each platform', () => {
+      const folder = 'desktop'
+      const version = '3.3.0'
+      const manifest = upload.getRemoteManifest(folder, version)
+
+      snapshot('test runner manifest', manifest)
+    })
+  })
+})