Merge pull request #36 from PHPCSStandards/feature/fix-phpcs-composer-plugin-dependency

Composer: set minimum Composer PHPCS plugin dependency version to `0.4.1`

Author: jrfnl

composer.json

@@ -22,7 +22,7 @@
     "require" : {
         "php" : ">=5.4",
         "squizlabs/php_codesniffer" : "^3.0.2",
-        "dealerdirect/phpcodesniffer-composer-installer" : "^0.3 || ^0.4.1 || ^0.5 || ^0.6.2"
+        "dealerdirect/phpcodesniffer-composer-installer" : "^0.4.1 || ^0.5 || ^0.6.2"
     },
     "require-dev" : {
         "roave/security-advisories" : "dev-master",