Move to third-party plugin management

.gitmodules

@@ -1,3 +0,0 @@
-[submodule "plugin/start/sensible"]
-	path = plugin/start/sensible
-	url = https://tpope.io/vim/sensible.git

init.lua

@@ -17,3 +17,6 @@ vim.api.nvim_set_keymap('n', '<Esc>p', ":tabp<cr>", {})
 vim.api.nvim_set_keymap('n', '<C-n>', ":bn<cr>", {})
 vim.api.nvim_set_keymap('n', '<C-p>', ":bp<cr>", {})
 
+-- Load plugins
+require('plugins')
+

lua/plugins.lua

@@ -0,0 +1,34 @@
+local function manage_plugins()
+    local plugins = {
+        ["https://github.com/faerryn/plogins.nvim.git"] = {},
+	["https://github.com/tpope/vim-sensible"] = {},
+	}
+
+	local manager = require("plogins").manage(plugins)
+
+    vim.api.nvim_create_user_command("PloginsUpgrade",    
+								     manager.upgrade, {})
+    vim.api.nvim_create_user_command("PloginsAutoremove", 
+									 manager.autoremove, {})
+end
+
+local plogins_source = "https://github.com/faerryn/plogins.nvim.git"
+local plogins_name = plogins_source:gsub("/", "%%")
+local plogins_dir =
+	("%s/site/pack/plogins/opt/%s"):format((vim.fn.stdpath("data")), 
+	plogins_name)
+
+if not vim.loop.fs_stat(plogins_dir) then
+    vim.loop.spawn("git", 
+		{ args = { "clone", "--depth", "1", plogins_source, plogins_dir } }, 
+		function(code, signal)
+			vim.defer_fn(function()
+				vim.cmd(("packadd %s"):format(vim.fn.fnameescape(plogins_name)))
+				manage_plugins()
+			end, 0)
+		end)
+else
+    vim.cmd(("packadd %s"):format(vim.fn.fnameescape(plogins_name)))
+    manage_plugins()
+end
+

plugin/start/sensible

@@ -1 +0,0 @@
-Subproject commit 8985da7669bbd73afce85ef0e4a3e1ce2e488595