I installed oh-my-zsh as suggested in http://ohmyz.sh/. FYI,
[~]$ zsh --version zsh 5.0.8 (x86_64-apple-darwin15.0) [~]$ echo $SHELL /bin/zsh [~]$ ls .oh-my-zsh/
Run the following in the terminal:
sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"