ZCML File
configure.zcml

<configure
    xmlns="http://namespaces.zope.org/zope"
    xmlns:apidoc="http://namespaces.zope.org/apidoc"
    >
<include
    package=".browser"
    />
<include
    package=".xmlrpc"
    />
<include
    file="http.zcml"
    />
</configure>