GIT - swap origin from master to develop branch

Easy steps to swap local branches from master to develop, do it from working directory:

git fetch && git checkout develop
git remote set-head origin develop

GRADLE - delete whole directory with all subdirectories

Override clean task:

clean {
    delete += 'dist'
}

If you do like this it will remove all files but leaves empty sub-directories:(!!!!!!)
clean {

    delete += fileTree('someDir')
}

or

clean {

    delete += fileTree('someDir').include('**/*')
}

MAVEN - Guide to naming conventions on groupId, artifactId and version

Guide to naming conventions on groupId, artifactId and version
https://maven.apache.org/guides/mini/guide-naming-conventions.html

GULP - free Gulp.js coursre from John Papa (link)

https://www.pluralsight.com/courses/javascript-build-automation-gulpjs

CSS - best place to choose right color palette for your web app

Here you will find variety of web sites samples of different color palette
http://www.colourlovers.com/

CSS - sample demo and github code of site with user image in circle

https://github.com/kimlabs/gentelella