Support Ruby 1.8
Replace Dropbox full path to "-"
Add spells
vim: set autoread
Add smartinput rule for RSpec
Fix ruby.rspec run option
zshrc: dive tmux earlier
Add SSH alias
zshrc: Move 'export RUBY'
Set rbenv/bin paths at first of $PATH
Add LC_CTYPE
Use show-ref for performance on large repository
Disable AgentForward in arguments at all, use ssh_config