Support Vim and Windows

[tamago324]

It looked like a great plugin, so I wanted to use it with Vim.
Implemented using the popup feature of Vim.

We also added Windows support.

Thank you!

Refer #8

[APZelos]

Thank you very much for your contribution 😄. Can you check my suggestion before I merge it?

[tamago324]

Thank you review 😂
Fixed.

[tamago324]

Thank you for merging!

[junkblocker]

Does this really work? In gvim (8.1.2234) I get

Error detected while processing function <lambda>9[1]..blamer#Show[23]..blamer#CreatePopup:
line   16:
E475: Invalid argument: blamer_popup_marker

[tamago324]

@junkblocker How to reproduce it?

[junkblocker]

This is on macOS latest.

1. Remove all .vimrc , .vim or move them aside etc.
2. cd && git clone https://github.com/APZelos/blamer.nvim.git .vim
3. cd .vim
4. gvim
5. :e README.md
6. :BlamerToggle

[soohyun0131-lee]

@junkblocker Hi, did you solve the problem? I met the same error too. (in Ubuntu 20.04)

Error detected while processing function <lambda>9[1]..blamer#Show[23]..blamer#CreatePopup:
line   16:
E475: Invalid argument: blamer_popup_marker

[junkblocker]

@mozzi0131 - I have been running VimR (nvim) instead of MacVim for a while now, so, not sure. Just tried with MacVim and :BlamerShow just shows the first line I am on when I switch it on but doesn't move to other lines as I move the cursor...so busted in different ways.

[tamago324]

I also tried to get it to work on Neovim on Ubuntu recently, but it didn't work, so when I have time, I'll take a look.

[soohyun0131-lee]

@junkblocker @tamago324 Thanks for sharing! It seems like it is not working on vim, Ubuntu 20.04.