gulpjs
* new spritesmith plugin
* reworked exports
* new nunjucks-render version fixing dependency issues!
File structure
New naming scheme for nunjucks files. Underscore used for files which
are imported and not directly displayed.
Nunjucks blocks where renamed and are placed differently.
New macro for navigational elements.
- 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
- reworked nearly all gulp tasks
- added html templating with nunjucks
- replaced some old html files
- started correction of scss and js files according to lint results