Close #28 and added files to setup Neovim from Vim

Namely nvim and set-nvim.

dotfiles/vimrc

@@ -12,7 +12,7 @@ set linebreak
 set shiftwidth=4
 set autoindent
 set mouse=c
-set clipboard=unnamedplus
+set clipboard+=unnamedplus
 set foldmethod=marker
 set linespace=5
 " set listchars=tab:\|\
@@ -137,6 +137,7 @@ nnoremap <leader>he :help
 nnoremap <leader>vhe :vert help 
 nnoremap <leader>m :call cursor(0, len(getline('.'))/2)<CR>
 nnoremap <leader>nw :set nowrap<CR>
+nnoremap <leader>nv :echo has('nvim')<CR>
 nnoremap <leader>pli :PlugInstall<CR>
 nnoremap <leader>plc :PlugClean<CR>
 nnoremap <leader>plu :PlugUpdate<CR>