Import vendor library into Git-managed project

gistfile1.sh

# Add a reference to the remote repo:
#
git remote add ajax-solr git://github.com/evolvingweb/ajax-solr
# Get the objects from the repo:
#
git fetch ajax-solr
# Create a branch that tracks the remote master branch:
#
git checkout -b ajax-solr ajax-solr/master
# Switch back to our own master and pull the code into a sub-directory:
#
git checkout master
git read-tree --prefix=src/vendor/ajax-solr/ -u ajax-solr