jboss-eap-7.0.0.ER5-installer.jar  contains a 7.0.0.ER4 bits.
I'd suggest using the project.version for the version.jboss.as.dist to avoid this in the future.
Can you please build a new ER5 jar and upload instead of the current one .
According to the ER5 announcement
but looking to the timestamps, this seems to be the final version of ER5 installer.