Fixed a typo.
Add the contents of copy-files to .gitignore.
Use $COPY_FILES instead of hardcoding copy-files.
Merge branch 'master' of github.com:cci-moc/admin-tools
Merge branch 'master' into centos7
Set the volume id when creating the ISO.

The bootloader tries to find the cdrom by volume id, and since we
weren't setting it, the system wasn't booting correctly.