Git, Simply.

gistfile1.sh

# Create a new project
mkdir my-project
cd my-project
git init
echo '.DS_Store' >> .gitignore
echo '*.sw*' >> .gitignore
git add .gitignore && git commit -m 'First!'
git branch development

# Set up a development remote
git remote add devsite $USER@example.com:my-project.git

# Begin a new version
git checkout -b v0.1
vim CHANGELOG
git add CHANGELOG && git commit -m 'Preparing v0.1'
git push origin v0.1

# Work on a new feature
git checkout -b ticket-1234-some-bug
vim .
git add file1 file2
git commit --verbose

# Release an issue for testing
git checkout development
git merge --no-ff -e ticket-1234-some-bug
git push devsite +development:master
git push origin development

# When an issue is approved
git checkout v0.1
git merge --no-ff -e ticket-1234-some-bug
git tag v0.1-rc1
git push v0.1 origin
git push --tags origin

# Creating a release
git checkout master
git merge --no-ff -e v0.1