Add installvimplugin script

script/installvimplugin

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+#
+# Install a vim plugin from Git (into start directory for now)
+
+set -e
+
+if [ -z "$1" ]; then
+  echo "Usage: installvimplugin <git url>"
+  exit 1
+fi
+
+basename=$(basename "$1" .git)
+cd "$HOME/.vim/pack/git-plugins/start"
+git clone https://github.com/dense-analysis/ale.git "$basename"