drop php 5.5 support

README.md

@@ -8,7 +8,7 @@ Download the latest release from our [website](http://www.espocrm.com).
 
 ### Requirements
 
-* PHP 5.5 or above (with pdo, json, gd, mcrypt extensions);
+* PHP 5.6 or above (with pdo, json, gd, openssl, zip, imap, mbstring, curl extensions);
 * MySQL 5.1 or above.
 
 For more information about server configuration see [this article](http://blog.espocrm.com/administration/server-configuration-for-espocrm/).

install/core/config.php

@@ -32,7 +32,7 @@ return array(
 	'apiPath' => '/api/v1',
 
 	'requirements' => array(
-		'phpVersion' => '5.5',
+		'phpVersion' => '5.6',
 
 		'phpRequires' => array(
 			'JSON',

install/index.php

@@ -61,7 +61,7 @@ $config = include('core/config.php');
 require_once 'core/SystemHelper.php';
 $systemHelper = new SystemHelper();
 
-if (version_compare(PHP_VERSION, '5.5.0', '<')) {
+if (version_compare(PHP_VERSION, '5.6.0', '<')) {
     die(str_replace('{minVersion}', $config['requirements']['phpVersion'], $langs['messages']['phpVersion']) . '.');
 }