Log Message:
Update the Facter Ruby gem to version 1.5.2. Current version is 1.5.3 but
this one is thoroughly tested by me.

Changes since 1.5:
 - Enabled a number of Windows facts - operating system, domain,
   ipaddress, macaddress, kernel, ipconfig and others.
 - macaddress now set on Ubuntu.
 - CONFIG['bindir'] CONFIG['sbindir'] have undesirable defaults on.
 - Allow specification of --bindir --sbindir --sitelibdir --mandir.
 - Package creation scripts for Mac OS X.
 - Solaris. (Whatever was done here, it's written like that in the ChangeLog.)
 - Add module level tests for Facter::IPAddress.
 - Add sample test and strawman solution for IP parsing code.
 - Adding better SuSE detection for both operatingsystem and release.
 - Adding a rake task for creating an archive.
 - macaddress not set on Ubuntu.
 - Modified the operatingsystem fact for Debian so it looks in
   /etc/debian_version instead of /proc/version.
 - Added virtual fact.
 - Added kernelversion fact.
 - Facter now defaults to 0 timeout.
 - CentOS version detection is now better.
 - Set the timeout the host-based and resolve-based resolutions to 2.
 - Added a Process.waitall thread when there's a timeout, to avoid zombies.
 - Update to dmidecode fact.
 - Added operatingsystemrelease for Solaris.
 - Updated virtual fact for xenu and xen0.
 - Removed facter from PREREQS.