Hi,
Who was handling NPM and/or Travis CI for GeoNetwork?
Because Travis is erroring due to a non-gn related issue:
[ERROR] npm http GET https://registry.npmjs.org/grunt-contrib-clean/0.4.1
[ERROR] npm ERR! Error: CERT_UNTRUSTED
[ERROR] npm ERR! at SecurePair.<anonymous> (tls.js:1370:32)
[ERROR] npm ERR! at SecurePair.EventEmitter.emit (events.js:92:17)
[ERROR] npm ERR! at SecurePair.maybeInitFinished (tls.js:982:10)
[ERROR] npm ERR! at CleartextStream.read [as _read] (tls.js:469:13)
[ERROR] npm ERR! at CleartextStream.Readable.read
(_stream_readable.js:320:10)
[ERROR] npm ERR! at EncryptedStream.write [as _write] (tls.js:366:25)
[ERROR] npm ERR! at doWrite (_stream_writable.js:221:10)
[ERROR] npm ERR! at writeOrBuffer (_stream_writable.js:211:5)
[ERROR] npm ERR! at EncryptedStream.Writable.write
(_stream_writable.js:180:11)
[ERROR] npm ERR! at write (_stream_readable.js:583:24)
[ERROR] npm ERR! at flow (_stream_readable.js:592:7)
[ERROR] npm ERR! at Socket.pipeOnReadable (_stream_readable.js:624:5)
[ERROR] npm ERR! If you need help, you may report this *entire* log,
[ERROR] npm ERR! including the npm and node versions, at:
[ERROR] npm ERR! <http://github.com/isaacs/npm/issues>
[ERROR]
[ERROR] npm ERR! System Linux 4.14.12-041412-generic
[ERROR] npm ERR! command
"/home/travis/build/geonetwork/core-geonetwork/web-ui-docs/node/node"
"/home/travis/build/geonetwork/core-geonetwork/web-ui-docs/node/npm/bin/npm-cli.js"
"install" "--color=false"
[ERROR] npm ERR! cwd /home/travis/build/geonetwork/core-geonetwork/web-ui-docs