Initial work towards template support

* Simple refactoring of the config system
* Add new unstyled template
* Add new modern template (previously the only)
* Add placeholder for blocky template
* Relocate autoloader
* Move build to ./bin

templates/unstyled/css/screen.css

@@ -0,0 +1,49 @@
+
+
+/*
+  Mobile layout
+  240–479 px
+  Zoomed out below 320 px
+*/
+@media screen and (min-width: 15em) {
+}
+
+
+/*
+  Wide mobile layout
+  480-767 px
+  Zoomed in above 480 px
+*/
+@media screen and (min-width: 30em) {
+}
+
+
+/*
+  Tablet layout
+  600-911 px
+  Zoomed in above 600 px
+*/
+@media screen and (min-width: 37.5em) {
+
+}
+
+
+/*
+  Widescreen layout
+  912-1887 px
+  Zoomed in above 912 px
+*/
+@media screen and (min-width: 57em) {
+
+}
+
+
+/*
+  Huge-screen layout
+  1888-2520 px
+  Zoomed in above 1920 px
+*/
+@media screen and (min-width: 118em) {
+
+
+}