Merge pull request #505 from puppetlabs/install-lsb-release

Clear up lsb-release error

diff --combined README.md
index f3a8fc70057a25529a77a61f257906d4e422a273,79a0dec5e5415b83010457c66e2fbe850b4a2c1b..ec27807eacb79532c26cde13d95028c68c465721
--- 1/README.md
--- 2/README.md
+++ b/README.md
@@@ -24,6 -24,8 +24,8 @@@ The apt module lets you use Puppet to m
  
  Apt (Advanced Package Tool) is a package manager available on Debian, Ubuntu, and several other operating systems. The apt module provides a series of classes, defines, types, and facts to help you automate Apt package management.
  
+ **Note**: For this module to be able to correctly auto detect which version of Debian/Ubuntu or derivative you're running you need to make sure the 'lsb-release' package is installed. We highly recommend making this part of your provisioning layer if you run many Debian or derivative systems or ensuring that you have at least Facter 2.2.0 installed which will pull in this dependency for you.
+ 
  ## Setup
  
  ### What apt affects
@@@ -217,8 -219,6 +219,8 @@@ apt::sources
  
  * `apt_update_last_success`: The date, in epochtime, of the most recent successful `apt-get update` run (based on the mtime of  /var/lib/apt/periodic/update-success-stamp).
  
 +* `apt_reboot_required`: Determines if a reboot is necessary after updates have been installed.
 +
  #### Class: `apt`
  
  Main class, includes all other classes.