Remove master and slave tags in decommission recipe.
Chefspec tests changes to decommission recipe.
Use helper to obtain bind ip address to be used in decommission recipe.
Update spec/decommission_spec.rb to correctly check for delete_rightscale_tag_database in "LVM is used" context.
Verify additional attributes in delete_rightscale_tag_database check.
Moved library/matchers to the rightscale_tags cookbook.
Merge pull request #13 from rightscale-cookbooks/white_14_06_acu111709_remove_tags_decommission_recipe

White 14 06 acu111709 remove tags decommission recipe