Merge branch 'feature/issue-7' into develop

.gitignore

@@ -1,4 +1,3 @@
 vendor/
 composer.lock
 phpunit.xml
-.idea

.php_cs

@@ -8,13 +8,24 @@ return PhpCsFixer\Config::create()
     ->setUsingCache(false)
     ->setRules(array(
         '@PSR2' => true,
+        '@PhpCsFixer' => true,
         'array_syntax' => [
             'syntax' => 'short',
         ],
         'binary_operator_spaces' => true,
         'no_whitespace_in_blank_line' => true,
         'ternary_operator_spaces' => true,
         'cast_spaces' => true,
-        'trailing_comma_in_multiline_array' => true
+        'trailing_comma_in_multiline_array' => true,
+        'concat_space' => [
+            'spacing' => 'one',
+        ],
+        'blank_line_before_statement' => [
+            'statements' => [
+                'return',
+                'declare',
+            ],
+        ],
+        'php_unit_test_class_requires_covers' => false,
     ))
     ->setFinder($finder);

.travis.yml

@@ -10,9 +10,6 @@ php:
     - 7.1
     - 7.2
 
-before_install:
-    - composer self-update
-
 install:
     - composer install
 

docker-compose.yml

@@ -7,4 +7,4 @@ services:
       dockerfile: .docker/Dockerfile
     volumes:
       - .:/var/www/html:rw
-    container_name: ws_security
+    container_name: ws_security

src/Created.php

@@ -5,13 +5,16 @@
 class Created extends Element
 {
     /**
-     * Element name
+     * Element name.
+     *
      * @var string
      */
     const NAME = 'Created';
+
     /**
-     * Constructor for Created element
-     * @param int $_timestamp the timestamp value
+     * Constructor for Created element.
+     *
+     * @param int    $_timestamp the timestamp value
      * @param string $_namespace the namespace
      */
     public function __construct($_timestamp, $_namespace = self::NS_WSSU)