Hi guys,
I was trying to build the latest repo on master.
It complained that 
```
[ERROR] import yargs from ‘yargs';
[ERROR] ^^^^^^
[ERROR]
[ERROR] SyntaxError: Unexpected reserved word
[ERROR]     at exports.runInThisContext (vm.js:53:16)
[ERROR]     at Module._compile (module.js:414:25)
[ERROR]     at Object.Module._extensions..js (module.js:442:10)
[ERROR]     at Module.load (module.js:356:32)
[ERROR]     at Function.Module._load (module.js:311:12)
[ERROR]     at Module.require (module.js:366:17)
[ERROR]     at require (module.js:385:17)
[ERROR]     at Liftoff.handleArguments (/Users/akuo/Developer/hawkular/hawkular/console/target/gulp-build/node_modules/gulp/bin/gulp.js:116:3)
[ERROR]     at Liftoff.<anonymous> (/Users/akuo/Developer/hawkular/hawkular/console/target/gulp-build/node_modules/gulp/node_modules/liftoff/index.js:192:16)
[ERROR]     at module.exports (/Users/akuo/Developer/hawkular/hawkular/console/target/gulp-build/node_modules/gulp/node_modules/liftoff/node_modules/flagged-respawn/index.js:17:3)
```
[ERROR] Failed to execute goal com.github.eirslett:frontend-maven-plugin:0.0.26:gulp (gulp build) on project hawkular-console: Failed to run task: ‘gulp.js build --production --no-color' failed. (error code 1) -> [Help 1]

Anyone knows how to fix this?
Thanks