added toopay's minifier

composer.json

@@ -6,7 +6,8 @@
         "zendframework/zend-log": "2.2.*",
         "zendframework/zend-mail": "2.2.*",
         "symfony/yaml": "2.3.*",
-        "leafo/scssphp": "0.0.8"
+        "leafo/scssphp": "0.0.8",
+        "toopay/assetic-minifier": "1.0.0"
     },
     "autoload": {
         "psr-0": {

lib/Rails/Config/default_config.php

@@ -169,7 +169,6 @@ $config->assets = [
      */
     'css_extensions' => [
         'scss' => [
-            'file'       => 'scss.inc.php',
             'class_name' => 'scssc',
             'method'     => 'compile',
             'static'     => false
@@ -192,8 +191,8 @@ $config->assets = [
      * Accepts an array like the one for extensions.
      */
     'css_compressor' => [
-        'class_name' => 'Minify_CSS_Compressor',
-        'method'     => 'process'
+        'class_name' => 'Minifier\Cssmin',
+        'method'     => 'run'
     ],
     'js_compressor' => [
         'class_name' => 'Rails\Assets\Parser\Javascript\ClosureApi\ClosureApi',