Changed: Update QA tools versions and added deployer and humbug

Author: frenck

composer.json

@@ -26,30 +26,30 @@
     "php": ">=5.6,<8.0-dev",
 
     "hirak/prestissimo": "^0.3",
-    "dealerdirect/phpcodesniffer-composer-installer": "^0.2.0",
+    "dealerdirect/phpcodesniffer-composer-installer": "^0.3.0",
 
     "behat/behat": "^3.1.0",
     "behat/mink": "^1.7.0",
     "behat/mink-goutte-driver": "^1.2.0",
     "brianium/paratest": ">=0.14.0,<1.0.0",
     "codeception/codeception": "^2.2.0",
+    "deployer/deployer": "^3.0.0",
     "frenck/php-compatibility": "^7.0.0",
     "friendsofphp/php-cs-fixer": "^2.0.0",
     "jakub-onderka/php-parallel-lint": ">=0.9.1,<1.0.0",
     "phploc/phploc": "^3.0.1",
-    "phpmetrics/phpmetrics": "^1.9.0",
+    "phpmetrics/phpmetrics": "^2.0.0",
     "phpmd/phpmd": "^2.2.0",
-    "phpro/grumphp": ">=0.9.0,<1.0.0",
-    "phpunit/phpunit": "^5.5.0",
+    "phpro/grumphp": ">=0.11.0,<1.0.0",
+    "phpunit/phpunit": "^5.5.0|^6.0.0",
     "pdepend/pdepend": "^2.2.0",
-    "sebastian/phpcpd": "^2.0.0",
+    "sebastian/phpcpd": "^3.0.0",
     "seld/jsonlint": "^1.4.0",
     "sensiolabs/security-checker": "^4.0",
     "sllh/composer-versions-check": "^2.0.0",
     "squizlabs/php_codesniffer": "^2.5",
     "scheb/tombstone-analyzer": "^0.3.0",
-
-    "ocramius/proxy-manager": "^1.0.0"
+    "humbug/humbug": "~1.0@dev"
   },
   "suggest": {
     "apigen/apigen": "Smart and Readable Documentation for your PHP project.",
@@ -59,10 +59,5 @@
     "phpunit/phpcov": "Command-line frontend for the PHP_CodeCoverage library",
     "sami/sami": "Documentation generator used for Symfony2 docs.",
     "theseer/phpdox": "A fast Documentation generator for PHP Code using standard technology (SRC, DOCBLOCK, XML and XSLT) with event based processing."
-  },
-  "extra": {
-    "phpcodesniffer-mapping": {
-      "wimg/php-compatibility": "PHPCompatibility"
-    }
   }
 }