Bump version [ci skip]

Author: sergeysviridenko

README.md

@@ -36,7 +36,7 @@ Create the composer.json file as follows:
 ```json
 {
     "require-dev": {
-        "phalcon/devtools": "~3.3"
+        "phalcon/devtools": "~3.4"
     }
 }
 ```
@@ -114,7 +114,7 @@ This command should display something similar to:
 ```sh
 $ phalcon --help
 
-Phalcon DevTools (3.3.0)
+Phalcon DevTools (3.4.0)
 
 Help:
   Lists the commands available in Phalcon devtools

scripts/Phalcon/Devtools/Version.php

@@ -4,7 +4,7 @@
   +------------------------------------------------------------------------+
   | Phalcon Developer Tools                                                |
   +------------------------------------------------------------------------+
-  | Copyright (c) 2011-2017 Phalcon Team (https://www.phalconphp.com)      |
+  | Copyright (c) 2011-present Phalcon Team (https://www.phalconphp.com)   |
   +------------------------------------------------------------------------+
   | This source file is subject to the New BSD License that is bundled     |
   | with this package in the file LICENSE.txt.                             |
@@ -39,6 +39,6 @@ class Version extends PhVersion
      */
     protected static function _getVersion()
     {
-        return [3, 3, 0, 4, 0];
+        return [3, 4, 0, 4, 0];
     }
 }