Squashed 'oh-my-zsh/' content from commit 434f3bc

git-subtree-dir: oh-my-zsh
git-subtree-split: 434f3bc05c5245d7a27ab0bb1ede5b78acc370a4
Merge commit 'd4506aa82361f93ab292be1e9382a5dba94b1ce5' as 'oh-my-zsh'
Squashed 'oh-my-zsh/custom/plugins/zsh-syntax-highlighting/' content from commit dbd27cb

git-subtree-dir: oh-my-zsh/custom/plugins/zsh-syntax-highlighting
git-subtree-split: dbd27cb30a710809dd070669c331574fdc15b397
Merge commit '1436fd3ba63e77011769bccd396ada8467ff1d97' as 'oh-my-zsh/custom/plugins/zsh-syntax-highlighting'
zshrc enhancements