Puppet 3 shows now deprecation warnings if the "@" is missing. see https://docs.puppetlabs.com/puppet/latest/reference/lang_template_erb.html#non-printing-tags
"It is important to ensure that <jail_dir> is both empty and unwritable to anyone." reference: http://cbonte.github.com/haproxy-dconv/configuration-1.4.html#3-chroot
Move dependencies block above the basic usage section
Moved required dependencies from init.pp into the README
Removed "Currently Redhat family OSes are supported." because later in the file it says, "Tested and built on Ubuntu and CentOS"