Updated UI to regain Display Area by removing design-only margins/paddings
moved control.css to ui.css
added few more images to docs
featureBox with multiple featureTabs - one per featureCollection
added more documentation
Finished basic userOptionModal
CSS Fixes
'build' target: copy css, images, icons & generate index.html based on index.dev.html
Merge branch 'develop' into feature/UI
user options are saved to localStorage. Don't do anything yet, though.
hook renderPos & stuff into actual user settings