Error on launch with deploy button

Nobody has claimed this yet.

I clicked the launch button, then filled out the form and this showed up in the logs, with an application error on the main page.

```2018-07-21T01:51:33.516523+00:00 app[web.1]: > node-prelaunch@1.0.0 start /app
2018-07-21T01:51:33.516525+00:00 app[web.1]: > node server
2018-07-21T01:51:37.049938+00:00 app[web.1]:
2018-07-21T01:51:37.050308+00:00 app[web.1]: /app/node_modules/email-templates/node_modules/juice/node_modules/web-resource-inliner/src/html.js:50
2018-07-21T01:51:37.051150+00:00 app[web.1]: result = result.replace( re, () => html );
2018-07-21T01:51:37.052242+00:00 app[web.1]: ^
2018-07-21T01:51:37.058962+00:00 app[web.1]: SyntaxError: Unexpected token )
2018-07-21T01:51:37.058965+00:00 app[web.1]: at Module._compile (module.js:439:25)
2018-07-21T01:51:37.058967+00:00 app[web.1]: at Object.Module._extensions..js (module.js:474:10)
2018-07-21T01:51:37.058968+00:00 app[web.1]: at Module.load (module.js:356:32)
2018-07-21T01:51:37.058970+00:00 app[web.1]: at Function.Module._load (module.js:312:12)
2018-07-21T01:51:37.058971+00:00 app[web.1]: at Module.require (module.js:364:17)
2018-07-21T01:51:37.058973+00:00 app[web.1]: at require (module.js:380:17)
2018-07-21T01:51:37.058975+00:00 app[web.1]: at Object. (/app/node_modules/email-templates/node_modules/juice/node_modules/web-resource-inliner/src/inline.js:15:15)
2018-07-21T01:51:37.058976+00:00 app[web.1]: at Module._compile (module.js:456:26)
2018-07-21T01:51:37.058978+00:00 app[web.1]: at Object.Module._extensions..js (module.js:474:10)
2018-07-21T01:51:37.058979+00:00 app[web.1]: at Module.load (module.js:356:32)
2018-07-21T01:51:37.058980+00:00 app[web.1]: at Function.Module._load (module.js:312:12)
2018-07-21T01:51:37.058982+00:00 app[web.1]: at Module.require (module.js:364:17)
2018-07-21T01:51:37.058984+00:00 app[web.1]: at require (module.js:380:17)
2018-07-21T01:51:37.058986+00:00 app[web.1]: at Object. (/app/node_modules/email-templates/node_modules/juice/index.js:11:14)
2018-07-21T01:51:37.058987+00:00 app[web.1]: at Module._compile (module.js:456:26)
2018-07-21T01:51:37.058989+00:00 app[web.1]: at Object.Module._extensions..js (module.js:474:10)
2018-07-21T01:51:37.058990+00:00 app[web.1]: at Module.load (module.js:356:32)
2018-07-21T01:51:37.058992+00:00 app[web.1]: at Function.Module._load (module.js:312:12)
2018-07-21T01:51:37.058993+00:00 app[web.1]: at Module.require (module.js:364:17)
2018-07-21T01:51:37.058995+00:00 app[web.1]: at require (module.js:380:17)
2018-07-21T01:51:37.058996+00:00 app[web.1]: at Object. (/app/node_modules/email-templates/lib/email-template.js:21:14)
2018-07-21T01:51:37.058998+00:00 app[web.1]: at Module._compile (module.js:456:26)
2018-07-21T01:51:37.058999+00:00 app[web.1]: at Object.Module._extensions..js (module.js:474:10)
2018-07-21T01:51:37.059001+00:00 app[web.1]: at Module.load (module.js:356:32)
2018-07-21T01:51:37.059002+00:00 app[web.1]: at Function.Module._load (module.js:312:12)
2018-07-21T01:51:37.059004+00:00 app[web.1]: at Module.require (module.js:364:17)
2018-07-21T01:51:37.059006+00:00 app[web.1]: at require (module.js:380:17)
2018-07-21T01:51:37.059007+00:00 app[web.1]: at Object. (/app/node_modules/email-templates/lib/main.js:7:21)
2018-07-21T01:51:37.075731+00:00 app[web.1]:
2018-07-21T01:51:37.086718+00:00 app[web.1]: npm ERR! Linux 4.4.0-1019-aws
2018-07-21T01:51:37.087174+00:00 app[web.1]: npm ERR! argv "/app/.heroku/node/bin/node" "/app/.heroku/node/bin/npm" "start"
2018-07-21T01:51:37.087538+00:00 app[web.1]: npm ERR! node v0.10.48
2018-07-21T01:51:37.090352+00:00 app[web.1]: npm ERR! npm v2.15.1
2018-07-21T01:51:37.090662+00:00 app[web.1]: npm ERR! code ELIFECYCLE
2018-07-21T01:51:37.090897+00:00 app[web.1]: npm ERR! node-prelaunch@1.0.0 start: `node server`
2018-07-21T01:51:37.091141+00:00 app[web.1]: npm ERR! Exit status 8
2018-07-21T01:51:37.091399+00:00 app[web.1]: npm ERR!
2018-07-21T01:51:37.091899+00:00 app[web.1]: npm ERR! Failed at the node-prelaunch@1.0.0 start script 'node server'.
2018-07-21T01:51:37.092160+00:00 app[web.1]: npm ERR! This is most likely a problem with the node-prelaunch package,
2018-07-21T01:51:37.092388+00:00 app[web.1]: npm ERR! not with npm itself.
2018-07-21T01:51:37.092606+00:00 app[web.1]: npm ERR! Tell the author that this fails on your system:
2018-07-21T01:51:37.092834+00:00 app[web.1]: npm ERR! node server
2018-07-21T01:51:37.093048+00:00 app[web.1]: npm ERR! You can get information on how to open an issue for this project with:
2018-07-21T01:51:37.093305+00:00 app[web.1]: npm ERR! npm bugs node-prelaunch
2018-07-21T01:51:37.093575+00:00 app[web.1]: npm ERR! Or if that isn't available, you can get their info via:
2018-07-21T01:51:37.094000+00:00 app[web.1]: npm ERR!
2018-07-21T01:51:37.094253+00:00 app[web.1]: npm ERR! npm owner ls node-prelaunch
2018-07-21T01:51:37.094477+00:00 app[web.1]: npm ERR! There is likely additional logging output above.```

Start by reproducing the launch flow with the `npm start`/`node server` entry point and inspect the reported syntax error in `node_modules/email-templates/node_modules/juice/node_modules/web-resource-inliner/src/html.js`. Trace the dependency versions against the reported Node v0.10.48 runtime; done means the launch flow starts without this error and the main page loads.

Written by the indexing model from the issue text.