Update vim-setup.sh

Add configure options for CLI only environment.
Add commands to update.
Make not to checkout tag commit. Use master instead.
Revert "Add configurations for rbenv"

This reverts commit b0c363729d8c27306be83330153acf10b223c83e.
Revert "Install rbenv and others by Linuxbrew"

This reverts commit 3eef33b2d8fe75692dadfaa6e72808b8a6319009.
Merge branch 'linuxbrew-rbenv-revertion'
Upgrade Ruby version to 2.2.0

Install libffi-dev for Ruby 2.2.0.