Upgrade OS X

Some simple bash scripts to automate package management upgrades on OS X.

Alpha software - use with caution! "60% of the time, it works every time…"

Scripts

upgrade runs the scripts below:
- upgrade-php - Upgrades Composer packages using composer
- upgrade-cli - Upgrades Homebrew binaries using brew.
- upgrade-node - Upgrades Node modules using npm.
- upgrade-ruby - Upgrades Ruby gems using gem.
- upgrade-python - Upgrade Python2/3 packages using pip.
- upgrade-applications - Upgrades Homebrew Cask applications using brew cask.