Install vim-plug globally (/etc/vim)

This is more of a report than a question. I just want to share with others that may be looking for how to solve the same problem.

I've succeeded to install vim-plug globally to all my server users, using the procedure I've explained here:

[stackoverflow question installing-vim-plugins-to-a-central-location-and-making-them-globally-available](https://stackoverflow.com/questions/32159264/installing-vim-plugins-to-a-central-location-and-making-them-globally-available/45018554#45018554)

But if I made any mistake or misconfiguration, I would be glad if anyone pointed that out.

It is working very well, so, I don't believe we have any (big) problem for now. Lets see when I install more demanding plugins, how it goes (ex. youcompleteme, etc.).

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- Type:
- [ ] Bug
- [x] Enhancement
- [ ] Feature Request
- [ ] Question
- OS:
- [ ] All/Other
- [x] Linux
- [ ] OS X
- [ ] Windows
- Vim:
- [x] Terminal Vim
- [ ] GVim
- [ ] Neovim