Fix file copy bug with the barbican installer.
Fix file copy bug with the barbican installer.

The barbican installer (in bin/barbican.sh) is not copying files correctly
to user's environments, which breaks the install. This commit fixes that
issue.

Change-Id: I5fad5332bd329a4ca13b5843127fd6dc033ad45f

cneill/barbican,MCDong/barbican,openstack/barbican,jmvrbanac/barbican,cloudkeep/barbican,openstack/barbican,MCDong/barbican,cneill/barbican,jmvrbanac/barbican,cloudkeep/barbican