Apache 2.4 is the default version for Ubuntu Trusty.
Upgrade the apache configuration with the additional permissions
required to run on both Apache 2.2 and Apache 2.4.
Follows work done in I70d814a5eaefea5a3fb6a47bc215f4ab64be884f
Change-Id: Ie63cf936709b0f272b7129a2dc613d07a4d2fab2