Major step for build process

- updated to 0.4.0
- corrected license for npm
- update to gulp 4
- updated all dependencies
- new and removed packages, see `package.json`
- changed file structure, renamed `pages` to `screen` and new `data` 
folder
- complete change of `gulpfile.js` with similar output

source/code/hippie/functions.js

@@ -11,14 +11,14 @@ function setup() {
 }
 
 // get document coordinates of the element
-function getCoords(elem) {
-	let box = elem.getBoundingClientRect();
-
-	return {
-		top: box.top + pageYOffset,
-		left: box.left + pageXOffset
-	};
-}
+// function getCoords(elem) {
+// 	let box = elem.getBoundingClientRect();
+//
+// 	return {
+// 		top: box.top + pageYOffset,
+// 		left: box.left + pageXOffset
+// 	};
+// }
 
 // https://stackoverflow.com/a/488073/1444149
 function Utils() {}