DOC-1281 Edited Puppet Server install_from_packages page

Revised the Puppet Server Install from Packages page.
DOC-1281: Puppet Server install_from_packages page

A few more edits.
DOC-1281: Puppet Server install_from_packages
Merge pull request #262 from jbondpdx/stable

DOC-1289 Edited Puppet Server install_from_packages page