I have created a custom report which defines:

<!-- CUSTOM HEADER -->
<template id="header_custom">
<t t-name="header_custom">
        <div class="header">
                        <div class="row">
                                <img class="img img-responsive" src="http://www.foobar.com/logo.png"/>
                                <hr/> 
                                <p>
                                        <small>
                                                Foo Ltd.<br/>
                                                Bar Street 10<br/>
                                                99.999 Paris<br/>
                                                VAT: FRA0000000
                                        </small>
                                </p>
                        </div>
        </div>
</t>
</template>

The file structure in the custom module is:

custom_reports
¦
¦___    __init__.py
¦
¦___    __openerp__.py
¦
¦___    xml
¦       ¦
¦       ¦___  custom_reports.xml
¦
¦___    static 
        ¦
        ¦___  logo.png  

So instead of using:

                                <img class="img img-responsive" src="http://www.foobar.com/logo.png"/>

I am wondering if I could do something like:

                                <img class="img img-responsive" src="../static/logo.png"/>

To allow distribution of images embedded inside the module