Restructure theme, use autoloader

gulpfile.js

@@ -12,7 +12,7 @@ var eslint       = require('gulp-eslint');
 var lazypipe     = require('lazypipe');
 var less         = require('gulp-less');
 var merge        = require('merge-stream');
-var cssNano      = require('gulp-cssnano');
+var minifyCss    = require('gulp-minify-css');
 var plumber      = require('gulp-plumber');
 var rev          = require('gulp-rev');
 var runSequence  = require('run-sequence');