Configure scrutinizer to fail builds for poor quality

Author: chadicus

.scrutinizer.yml

@@ -9,11 +9,17 @@ tools:
     php_mess_detector: true
     php_code_sniffer:
         config:
-            standard: PSR1
+            standard: PSR2
     sensiolabs_security_checker: true
     php_loc:
         excluded_dirs:
             - vendor
             - tests
     php_pdepend: true
     php_sim: true
+build_failure_conditions:
+    - 'elements.rating(<= D).new.exists'           # No new classes/methods with a rating of D or worse allowed (useful for legacy code)
+    - 'issues.label("coding-style").new.exists'    # No new coding style issues allowed
+    - 'issues.label("coding-style").new.count > 5' # More than 5 new coding style issues.
+    - 'issues.severity(>= MAJOR).new.exists'       # New issues of major or higher severity
+    - 'project.metric("scrutinizer.quality", < 6)' # Code Quality Rating drops below 6