IntelliJ loves filling project directories with crap \o/
Begin packaging client-side code with Gradle

Wrap Gulp with Gradle to allow the client-side code to be built as part
of the Android application. All we need to do now is incorporate the
built assets in the application package.
Remove nanohttpd-core from app's sourceSets
Package processed CSS/HTML/JS into JAR files
Remove and ignore existing assets
Incorporate frontend into the build process
Make assets accessible in nanohttpd