Update flint settings

.flintci.yml

@@ -1,3 +1,5 @@
 services:
   phpcsfixer: true
-  yamllint: true
+  yamllint:
+    version: latest
+    config_path: .yamllint_config

.gitattributes

@@ -5,6 +5,7 @@
 .scrutinizer.yml export-ignore
 .styleci.yml export-ignore
 .travis.yml export-ignore
+.yamllint_config export-ignore
 .php_cs.dist export-ignore
 .php_cs export-ignore
 codesize.xml export-ignore

.yamllint_config

@@ -0,0 +1,11 @@
+
+ignore: |
+    app/*
+    src/*
+    .travis.yml
+    .codeclimate.yml
+
+extends: default
+rules:
+  line-length:
+    max: 500