update composer.json, add .gitignore, phpunit.xml & bootstrap.php

.gitignore

@@ -0,0 +1,3 @@
+/vendor
+/composer.lock
+/.idea

Tests/bootstrap.php

@@ -0,0 +1,21 @@
+<?php
+
+/*
+ * This file is part of the EWZSearchBundle package.
+ *
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+if (!($loader = @include __DIR__.'/../vendor/autoload.php')) {
+    echo <<<'EOT'
+You need to install the project dependencies using Composer:
+$ wget http://getcomposer.org/composer.phar
+OR
+$ curl -s https://getcomposer.org/installer | php
+$ php composer.phar install --dev
+$ phpunit
+EOT;
+    exit(1);
+}

composer.json

@@ -13,9 +13,14 @@
         }
     ],
     "require": {
-        "symfony/framework-bundle": "2.*",
+        "php": "^5.5.9 || ^7.0",
+        "symfony/framework-bundle": "^2.0||^3.0",
         "excelwebzone/zend-search": "~1.0"
     },
+    "require-dev": {
+        "symfony/phpunit-bridge": "^2.0 || ^3.0 || ^4.0",
+        "phpunit/phpunit":  "~5.0"
+    },
     "autoload": {
         "psr-0": { "EWZ\\Bundle\\SearchBundle": "" }
     },

phpunit.xml.dist

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<phpunit bootstrap="./Tests/bootstrap.php" colors="true">
+
+    <testsuites>
+        <testsuite name="full test suite">
+            <directory suffix="Test.php">./Tests</directory>
+        </testsuite>
+    </testsuites>
+
+    <filter>
+        <whitelist>
+            <directory>./</directory>
+            <exclude>
+                <directory>./Resources</directory>
+                <directory>./Tests</directory>
+                <directory>./vendor</directory>
+            </exclude>
+        </whitelist>
+    </filter>
+</phpunit>