message: Makes assets prefix configurable via env variable or local.js
diff: @@ -10,6 +10,7 @@ try {
  const {
  A11Y_AUDIT = 'true',
  + ASSETS_PREFIX,
  BACKEND: backend = 'local',
  CLIENT_ID: clientId,
  ENABLED_LOCALES = 'en, en-US',
  @@ -51,7 +52,7 @@ module.exports = function(environment) {
  modulePrefix: 'ember-osf-web',
  environment,
  rootURL: '/',
  - assetsPrefix: '/',
  + assetsPrefix: ASSETS_PREFIX || '/',
  locationType: 'auto',
  sentryDSN: null,
  sentryOptions: {
  @@ -210,7 +211,7 @@ module.exports = function(environment) {
  };
  if (environment === 'production') {
  - ENV.assetsPrefix = '/ember_osf_web/';
  + ENV.assetsPrefix = ASSETS_PREFIX || '/ember_osf_web/';
  }
  if (environment === 'development') {
  