* Add Let's Encrypt SSL cert support.
This patch has piku use the acme.sh script to request and maintain Let's
Encrypt SSL certs rather than generate self-signed certs. For it to
work you must install acme.sh as the user piku. Installation
instructions here: https://github.com/Neilpang/acme.sh#1-how-to-install
The next commit updates piku-bootstrap to install acme.sh by default.
If acme.sh is not installed piku continues to default to a self-signed
certificate.
* Install acme.sh SSL cert wrangler in bootstrap.
The previous commit contains details about usage.
* Bootstrap script initial working version.
* Bootstrap: more verbose messaging.
* Bootstrap: working up to piku over SSH.
* Bootstrap: full bootstrap minus nginx.
* Bootstrap: ensure py2 for Ansible.
* Bootstrap: more deps.
* Bootstrap: piku user Ansible tmp to avoid err.
* Bootstrap: local venv source in ~/.piku-bootstrap
* Bootstrap: nginx + incron install.
* Bootstrap: self-install logging and less verbose.
* Bootstrap: special permissions for --pi mode.
* Improved usage + self-install text.
Rui Carmo