Added config for phpunit and Travis CI.

Author: phansys

.travis.yml

@@ -0,0 +1,12 @@
+language: php
+
+php:
+  - 5.3
+  - 5.4
+  - 5.5
+
+before_script:
+  - wget -nc http://getcomposer.org/composer.phar
+  - php composer.phar install
+   
+script: phpunit --configuration phpunit.xml.dist

phpunit.xml.dist

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+<?xml version="1.0" encoding="UTF-8"?>
+
+<phpunit backupGlobals="false"
+         backupStaticAttributes="false"
+         colors="true"
+         convertErrorsToExceptions="true"
+         convertNoticesToExceptions="true"
+         convertWarningsToExceptions="true"
+         processIsolation="false"
+         stopOnFailure="false"
+         syntaxCheck="false"
+         bootstrap="tests/bootstrap.php"
+>
+    <testsuites>
+        <testsuite name="PHP JSON Web Token Test Suite">
+            <directory>./tests</directory>
+        </testsuite>
+    </testsuites>
+</phpunit>

tests/bootstrap.php

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+<?php
+
+if (file_exists($file = __DIR__ . '/autoload.php')) {
+    require_once $file;
+} elseif (file_exists($file = __DIR__ . '/autoload.php.dist')) {
+    require_once $file;
+}