Revert "Not using Ctrl-s for surround.vim anymore"

This reverts commit 802f151d7bacbe7df78d21e5d040ea60c7ca5fa9.
Don't automatically source .vimrc on save

Each time I save it, the saving becomes slower and slower, and at some
point it's unbearable. I don't know why it happens.
Add alignment mapping for the pipe symbol (|)

I often need it for tables in Cucumber or in Markdown.
Replaced UltiSnips with Snipmate

I don't want Python, I want pure VimScript.
Upgrade to latest Neovim, remove clipboard hack
Add Bruno to list of thanks
Include plugin for :Qargs instead of embedding it
Remove the mapping for opening .vimrc
Extact last position jump into a function
Compatibility conditionals are better after all
Switch to vim-plug again

2 main reasons:

* Parallel install
* Filetypes get set before my autocommands, so my JumpToLastPosition()
  function works
Better mappings for recalling command history
I got used to not using arrow keys
Minor estetic change
Revert "Extact last position jump into a function"

This reverts commit 60cd597a532e4a86a5ef1b4c38b6a3df505eea57.
vim-test now provides default mappings