Switching web-app build to embed node.js dependency in maven

Right now we use brunch.io to build web-app, which depends on node\npm binaries beeng installed.
This works for dev env and travis-ci so far as their default image for java projects contains both.

But this will make troubles in example if we build under heroku-java-buildpack or any third-party env (like Strider-CD)

Lucky enough we have awesome frontend-maven-plugin to bring all the dependencies with us