handling external repos for bill's kitchen releases

clone_branch.sh

# clone and set up remote tracking branch 
cd somewhere
git clone git://github.com/tknerr/cookbooks-motd.git target/dir
cd target/dir
git checkout -t origin/bills-kitchen-1.0_branch

create_tag_and_branch.sh

# create tag and branch
cd cookbooks-motd

# make sure we are based on master and up-to-date (which is typically what we want)
git checkout master
git pull

# create tag and branch based on tag
git tag -a bills-kitchen-1.0 -m "freeze for bill's kitchen 1.0 release"
git checkout -b bills-kitchen-1.0_branch bills-kitchen-1.0
git push origin bills-kitchen-1.0_branch --tags

# don't forget to switch back
git checkout master