Merge pull request #43 from fredden/feature/composer.lock-false

Composer: avoid writing a lock file

Author: jrfnl

composer.json

@@ -31,6 +31,7 @@
     "config": {
         "allow-plugins": {
             "dealerdirect/phpcodesniffer-composer-installer": true
-        }
+        },
+        "lock": false
     }
 }