GitLab

Reorganizing plugins so that each plugin has it's own directory now so that any plugin-specific functions can be bundled within there.

Implement a simple module that automatically launches the ssh-agent when you login and
adds your default key.

Useful for anyone that does remote work and thus doesn't have access to a keychain tool.

- update plugin architecture
- completion function in $ZSH/functions/brew
- plugins/brew.plugin.zsh only activates

Initial implementation of a new plugin system, so that people can managed which aliases/functions they want.