make scrutinizer handle CI

Author: Jamie Hannaford

.scrutinizer.yml

@@ -9,11 +9,20 @@ filter:
 checks:
     php: true
 
-coding_style:
-    php: {  }
+tools:
+    php_cs_fixer:
+        fixers:
+            - 'psr2'
+        filter:
+            paths:
+                - 'samples/*'
+                - 'src/*'
+                - 'tests/*'
 
 build:
     tests:
+        before:
+            - 'vendor/bin/parallel-lint --exclude vendor .'
         override:
             -
                 command: './vendor/bin/phpunit --coverage-clover ./coverage.xml'