Bump consul version to 1.3.0

Fix systemd detection and allow disabling the service

bump consul version default to 1.2.1

(doc) show more config variables in pillar.example

Set datata dir as home dir for new Consul user

Secure filesystem permissions for config file and data dir

Test to make sure consul service is up and running.

Allow configure user and group for Consul service

Remove services.json, no need for it anymore

add context to script templates

Use file.serialize for better json format.

Bugfix: Defaults are ignored when pillar is set

[consul] allow rehoming

Added support for installation on ARM architectures

Create data dir based on pillar value

Download URL configurable via pillar

I ran into this problem where the formula can't download and install
Consul:

https://github.com...

Enable Consul service to start at boot time

update to 0.7.0

Ref: https://releases.hashicorp.com/consul/0.7.0/consul_0.7.0_SHA256SUMS

* Providing for upstart in consul-template service

* typo

update consul default to 0.6.4

consul 0.6.1 is packaged with the UI already

Separate consul and consul-template states

Break up the consul formula into two states: consul and consul-template
such that it is possible...

Fix conflicting ID with other formulas

updating install to use releases.hasicorp.com and version 0.6.1

Split state files and cleanup formula

Use symlinks to versioned binaries to handle version updates