Added new phpunit

Added codesniffer and phpstan
Fixed some PSR-2 misstakes

Author: Artur (Seti) Łabudziński

composer.json

@@ -15,25 +15,44 @@
         "mockery/mockery": "^0.9.4"
     },
     "require-dev": {
-        "phpunit/phpunit": "~4.4"
+        "phpunit/phpunit": "~6.1",
+        "squizlabs/php_codesniffer": "^2.0",
+        "frenck/php-compatibility": "^7.0.0",
+        "dealerdirect/phpcodesniffer-composer-installer": "~0.4",
+        "jakub-onderka/php-parallel-lint": "~0.9",
+        "phpstan/phpstan": "~0.7"
     },
     "license": "Apache 2.0",
     "authors": [
-	{
-		"name": "Artur (Seti) Łabudziński",
-		"email": "[email protected]",
-		"homepage": "http://chibi.pl/"
-	},
+        {
+            "name": "Artur (Seti) Łabudziński",
+            "email": "[email protected]",
+            "homepage": "http://chibi.pl/"
+        },
         {
             "name": "KwangSeob Jeong",
             "email": "[email protected]",
-            "homepage": "http://lesstif.com/",
-	    "Role": "First Authour / Creator"
+            "homepage": "http://lesstif.com/"
         }
     ],
     "autoload": {
         "psr-4" : {
             "Jira\\Api\\" : "src/"
         }
+    },
+    "scripts": {
+        "install-codesniffs": [
+            "Dealerdirect\\Composer\\Plugin\\Installers\\PHPCodeSniffer\\Plugin::run"
+        ],
+        "autofix-code": [
+            "sh ./vendor/bin/phpcbf"
+        ],
+        "phpstan": [
+            "sh ./vendor/bin/phpstan analyse -c phpstan.neon -l 7 src"
+        ],
+        "auto": [
+            "@autofix-code",
+            "@phpstan"
+        ]
     }
 }

phpcs.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0"?>
+<ruleset name="Coding Standard Config">
+    <description>standard config file</description>
+
+    <arg value="n" />
+    <arg name="report" value="full" />
+    <arg name="encoding" value="UTF-8" />
+    <arg name="extensions" value="php" />
+
+    <!-- Run against the PHPCompatibility ruleset -->
+    <rule ref="PHPCompatibility">
+        <!-- this is library, anyone using it should fix that, so excluding this -->
+        <exclude name="PHPCompatibility.PHP.DefaultTimezoneRequired"/>
+    </rule>
+    <config name="testVersion" value="7.0-7.1" />
+
+
+    <rule ref="ZEND" />
+
+    <file>./src</file>
+</ruleset>

phpstan.neon

@@ -0,0 +1,14 @@
+# Configuration for PHP Static Analysis
+# https://github.com/phpstan/phpstan
+parameters:
+    bootstrap: %rootDir%/../../../vendor/autoload.php
+
+    fileExtensions:
+        - php
+
+    # Do not treat unmatched patterns as errors
+    reportUnmatchedIgnoredErrors: false
+
+    universalObjectCratesClasses: {}
+
+    ignoreErrors: {}