Merge pull request #92 from dannyvankooten/enhancement/add-docheader

Added documentation header checker

diff --cc composer.json
index d79d046,dc9ffd6..028c609
--- 1/composer.json
--- 2/composer.json
+++ b/composer.json
@@@ -20,10 -20,10 +20,11 @@@
      }
    ],
    "require": {
 -    "php": "^5.3.0|^7.0"
 +    "php": "^5.3.0|^7.0",
 +    "fig/http-message-util": "^1.1"
    },
    "require-dev": {
+     "malukenho/docheader": "^0.1.5",
      "phpunit/phpunit": "4.8.*",
      "squizlabs/php_codesniffer": "2.*"
    },