Magento – How to Add JS File to All Pages

Let's assume I have a company named Company and I'm developing a magento module named Module. What I want my module to do is simple: Add a JavaScript file to header tag of ALL pages in magento. But for some reason, it doesn't add the script in any pages.

Note: Currently I'm testing it for frontend.

Note 2::I'm using XAMPP (php 5.6, mysql 5.6, apache 2) if that's relevant.

Here is my directory tree:

Root
├───app
│   ├───code
│   │   └───local
│   │       └───Company
│   │           └───Module
│   │               └───etc
│   │                       config.xml
│   │
│   ├───design
│   │   └───frontend
│   │       └───base
│   │           └───default
│   │               └───layout
│   │                       module.xml
│   │
│   └───etc
│       └───modules
│               Company_Module.xml
│
└───js
    └───company
            module.js

Content of app\etc\modules\Company_Module.xml:

<?xml version="1.0"?>
<config>
    <modules>
        <Company_Module>
            <active>true</active>
            <codePool>local</codePool>
        </Company_Module>
    </modules>
</config>

Content of app\code\local\Company\Module\etc\config.xml:

<?xml version="1.0"?>
<config>
    <modules>
        <Company_Module>
            <version>0.1.0</version>   
        </Company_Module>
    </modules>
    <frontend>
        <layout>
            <updates>
                <module>
                    <file>module.xml</file> 
                </module>
            </updates>
        </layout>
    </frontend>
</config>

Content of app\design\frontend\base\default\layout\module.xml:

<?xml version="1.0"?>
<layout version="0.1.0">
    <default>
        <reference name="head">
            <action method="addJs">
                <script>company/module.js</script>
            </action>
        </reference>
    </default>
</layout>

Content of js\company\module.js :

alert('Yes!');