cryptutil: add automatic certificate management (#644)

Signed-off-by: Bobby DeSimone <bobbydesimone@gmail.com>

scripts/generate_wildcard_cert.sh

@@ -1,24 +0,0 @@
-#!/bin/bash
-# acme.sh : https://github.com/Neilpang/acme.sh
-#			curl https://get.acme.sh | sh
-# NOTA BENE:
-# if you use a DNS service that supports API access, you may be able to automate
-# this process. See https://github.com/Neilpang/acme.sh/wiki/dnsapi
-
-echo "=> first generate a certificate signing request!"
-$HOME/.acme.sh/acme.sh \
-	--issue \
-	-k ec-256 \
-	-d '*.corp.example.com' \
-	--dns \
-	--yes-I-know-dns-manual-mode-enough-go-ahead-please
-
-read -p "press anykey once you've updated your TXT entries"
-
-$HOME/.acme.sh/acme.sh \
-	--renew \
-	--ecc \
-	-k ec-256 \
-	-d '*.corp.example.com' \
-	--dns \
-	--yes-I-know-dns-manual-mode-enough-go-ahead-please