(maint) acceptance config cleanup

This commit removes the full template path from all our acceptance
configs, and replaces vcloud.delivery.puppetlabs.net with
vmpooler.delivery.puppetlabs.net. It also removes the 'filecount' config
parameter since it isn't used for anything.
Merge pull request #3393 from rji/maint/stable/acceptance-config-housekeeping

(maint) acceptance config cleanup