Next content push

- changed .gitignore for art folder
- add gulp processing for art
- changed nunjucks templates file structure to reflect demo files
- removed file for new styles
- renamed most sass variables
- added sass function for space classes
- great progress with content of the intro page
- moved old gulp tasks to DEPRECATED.md

source/pages/demo/error/404.njk

@@ -2,7 +2,7 @@
 {% set pageId = "404" %}
 {% set pageClass = "body_status" %}
 
-{% extends "hippie/demo-maintenance.njk" %}
+{% extends "demo/maintenance.njk" %}
 
 {% block title %}404{% endblock %}
 {% block head %}
@@ -21,5 +21,5 @@
     <p class="quote_source"><a href="https://de.wikipedia.org/wiki/HTTP-Statuscode#4xx_.E2.80.93_Client-Fehler">Wikipedia</a></p>
   </blockquote>
 </main>
-{% include "hippie/partials/footer-status.njk" %}
+{% include "demo/partials/footer-status.njk" %}
 {% endblock %}

source/pages/demo/error/500.njk

@@ -2,7 +2,7 @@
 {% set pageId = "500" %}
 {% set pageClass = "body_status" %}
 
-{% extends "hippie/demo-maintenance.njk" %}
+{% extends "demo/maintenance.njk" %}
 
 {% block title %}500{% endblock %}
 {% block head %}
@@ -21,5 +21,5 @@
     <p class="quote-author"><a class="line-link" href="https://de.wikipedia.org/wiki/HTTP-Statuscode#5xx_%E2%80%93_Server-Fehler">Wikipedia</a></p>
   </blockquote>
 </main>
-{% include "hippie/partials/footer-status.njk" %}
+{% include "demo/partials/footer-status.njk" %}
 {% endblock %}