Loopback-explorer loads express and strong-remoting from loopback's
`node_modules` folder. This fails when one of those dependencies
was installed to the parent project, e.g. as a peer dependency.
app/node_modules
+- express # <- express installed as peer to loopback
+- loopback
+- node_modules # <- express is not there
As of this commit, loopback-explorer will retry the `require()` call
without `loopback/node_modules` prefix if the first require fails.
1. `require('loopback/node_modules/express')`
2. `require('express')`
The change should fix (some of) unit-tests failures in
https://github.com/strongloop/loopback-workspace