Maintenance and a little bit more content

- added favicon
- changes to the gulp sprite module
- changes to gulp linting
- fixed javascript scroll function and added setup function content
- fixed javascript indentation
- new error pages
- changed css for link colors
- fixed css sprites

source/templates/demo/partials/exp-colors.njk

@@ -0,0 +1,7 @@
+<!-- explanation-colors.partial -->
+{# var colors = [{name: "alpha", class: "alpha_color"}] #}
+
+{% set cls = cycler("odd", "even") %}
+{% for row in rows %}
+  <div class="{{ cls.next() }}">{{ row.name }}</div>
+{% endfor %}

source/templates/demo/partials/footer-status.njk

@@ -1,4 +0,0 @@
-<!-- footer-status.partial -->
-<footer class="pos_abs pin_bottom width_full">
-	<address class="txt_center"><a class="lineLink" href="mailto:admin@domain.tld">admin@domain.tld</a> * Server Application/ver.s.ion (System Name) serving domain.tld:port</address>
-</footer>