* Use `PUT` as the verb for deregistering a service.

Consul 1.0 has started to enforce the verbs used:
*https://www.consul.io/docs/upgrade-specific.html#http-verbs-are-enforced-in-many-http-apis

* Appease rubocop errors

Concerning ACL tokens, the Consul documentation (https://www.consul.io/api/index.html#authentication) says:

> Previously this was provided via a ?token= query parameter. This functionality exists on many endpoints for backwards compatibility, but its use is highly discouraged, since it can show up in access logs as part of the URL.

The `config.acl_token` setting in Diplomat sets the `token` query string parameter rather than the header. Additionally, it does not set it for all API endpoints (e.g., Services). Setting the header instead fixes both issues.

There is no need for a separate module, all these methods are only used
within the rest client.

In some cases you might want to have multiple ::Diplomat::RestClient at
the same time but with different configurations. Using a static config
forbid this kind of uses.

Possible use cases:
- Multiple clients with different Tokens
- Multiple clients pointing to different Consul cluster

This commit should fix WeAreFarmGeek#159

…tration_deregistration

Support for tokens when registering/unregistering entities on Agent

…figuration

Allow to pass Diplomat::Configuration object when using diplomat

README: Drop defunct badge, use SVG

Suggest using X-Consul-Token for ACL tokens

CI: Update to current set of Rubies

Some of the verbs were get instead of put.

Will fix WeAreFarmGeek#173

It will solve WeAreFarmGeek#177

Support for Output in TTL checks

 - Fix incorrect verbs for checks Fix WeAreFarmGeek#173
 - Use json_pure to avoid the need for installing a compiler. Fix WeAreFarmGeek#177
 - Allow updating Output with TTL checks WeAreFarmGeek#178

simpler convert_to_hash function

Using the configs hash target host or token can be
different at each call

…where

Enable configuration override on each consul api call

Set flags attribute on KVPair during lock acquisition and release

…ek#181)

* Avoid having a HTTP 302 if key requested starts with '/'

This might fix: WeAreFarmGeek#171

* Fixed rubocop warning

This release cleanup a lot the existing APIs while preserving ascending compatibility.
It will avoid relying on side effects to configure diplomat and allow to override most
configuration options per API call as implemented in WeAreFarmGeek#179.
It is now easy to use one instance of the lib and to perform several calls with different tokens and/or
consistency options for instance.

As every data was converted to json, raw data
usage was impossible

Reverting all json conversion to source function and
remove systematic conversion.

Fixes: WeAreFarmGeek#187

Adds register_http to access methods and Updated README and Changelog

… into feature/http-check

# Conflicts:
#	CHANGELOG.md
#	README.md
#	lib/diplomat/check.rb