Agent 4.0.0 can not process the default apache2 config on Unbuntu 14.04

Agent 4.0.0 does not work with the default ubuntu (14.04) configuration for apache2.

Steps to recreate
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1) Set up machine with Ubuntu server version 14.04 on it.

2) Install apache2 using sudo apt-get-install-apache2

3) Follow steps in https://www.digitalocean.com/community/tutorials/how-to-set-up-apache-virtual-hosts-on-ubuntu-14-04-lts to create a site

4) Now unzip Apache_v2.4_Linux_64bit_4.0.0.zip

5) Now attempt to install agent ./agentadmin --install

After entering location of config file, we get an error message "Error: invalid server configuration"

In the logs we get the following

2016-02-22 15:37:41  OpenAM Web Agent for Apache Server interactive installation
2016-02-22 15:37:41  license was accepted earlier
2016-02-22 15:38:02  Found group ${APACHE_RUN_GROUP}, gid 0
2016-02-22 15:38:02  could not locate LoadModule configuration directive in /etc/apache2/apache2.conf

What has been tried
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Agent 3.3.4 - This got past the stage of verifying the config

Taking the default httpd conf from the downloaded httpd distribution and using this with the agent - This also worked

So it seems that the issue was probably introduced in Agent 4.0.0