Squashed 'chef-repo/cookbooks/alternate_search/' content from commit 4b86ba5

git-subtree-dir: chef-repo/cookbooks/alternate_search
git-subtree-split: 4b86ba548efce28a1491929fd8058de19c7f6f87
Merge commit '5c65c843a66a31328b19c99f716fc31983e3966e' as 'chef-repo/cookbooks/alternate_search'
CORE-39 - Added auto-generated ``chefignore`` file to Chef working directory.
CORE-40 - Updated README with list of basic POSIX components and "stuff" (also removed invalid subtree files for the ``alternate_search`` cookbook).
CORE-40 - Created shell script for configuring Git subtrees.