Setting environment reported to Sentry separate from NODE_ENV

For preview and prod, NODE_ENV is "production"

src/setup/raven.js

@@ -3,7 +3,7 @@ import Raven from 'raven-js';
 const setupRaven = () => {
   Raven.config(process.env.SENTRY_KEY, {
     whitelistUrls: [/https:\/\/(.*\.)?regexper\.com/],
-    environment: process.env.NODE_ENV,
+    environment: process.env.DEPLOY_ENV,
     debug: (process.env.NODE_ENV !== 'production'),
     release: process.env.BUILD_ID
   });

src/setup/raven.test.js

@@ -15,7 +15,7 @@ describe('setupRaven', () => {
   });
 
   it('sets the environment', () => {
-    process.env.NODE_ENV='test environment';
+    process.env.DEPLOY_ENV='test environment';
     setupRaven();
     expect(Raven.config).toHaveBeenCalledWith(expect.anything(), expect.objectContaining({
       environment: 'test environment'