Use boolean instead of string

Change-Id: Ieb768a79d6b4fd4f574b71c51e64f828f8d3316b
Ensure xfsprogs and parted are not already installed

Change-Id: I9c26d9dca2c5e69112776fb033fca8d8660f6179
Customizable allowed_sync_hosts in container-server.conf

Insert default value into .conf file (127.0.0.1) or use
custom value if specified.

Change-Id: I9caec9657a2a3ad789b7dab646e505f609c25655
Merge "Use boolean instead of string"
Merge "Ensure xfsprogs and parted are not already installed"
Merge "Customizable allowed_sync_hosts in container-server.conf"
Merge branch 'dev' of https://github.com/gwdg/puppetlabs-swift into dev