Log Message:
Update ruby-facer to 1.6.6.

1.6.6
===
e046144 Updated CHANGELOG for 1.6.6rc2
c273d34 Make ec2 facts work on CentOS again (#12666)
c218d84 (#12362) Use Tempfile to generate temp files
f6bbe14 (#12170) Adds gem spec description Without this patch, the gem spec file \ 
is missing a description attribute, which caus
5c5c330 Changes apple rake task to reflect package name facter instead of puppet.
9b5cb26 Updating conf/redhat/facter.spec for 1.6.5 release.
7d3889d (#12079) Fix order-dependent test failure due to odd stubbing.
7f2a0e2 add a simple test for openstack ec2 facts
cb598aa Support EC2 facts on OpenStack