bump version and update changelog

Author: zachdaniel

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 - No unreleased changes currently.
 
+## [1.6.0] - 2018-06-04
+- Storage strategy behaviour
+- Centralize most storage logic, requiring only the most adapter specific behaviour to be defined by the adapter.
+
 ## [1.5.0] - 2018-06-02
 ### Changed
 - Interface for updating span metadata, and creating with metadata has been updated

README.md

@@ -16,7 +16,7 @@ This library is undergoing some structural changes for future versions. This doc
 
 ```elixir
 def deps do
-  [{:spandex, "~> 1.5.0"}]
+  [{:spandex, "~> 1.6.0"}]
 end
 ```
 

mix.exs

@@ -4,7 +4,7 @@ defmodule Spandex.Mixfile do
   def project do
     [
       app: :spandex,
-      version: "1.5.0",
+      version: "1.6.0",
       elixir: "~> 1.3",
       elixirc_paths: elixirc_paths(Mix.env()),
       build_embedded: Mix.env() == :prod,
@@ -64,8 +64,7 @@ defmodule Spandex.Mixfile do
       {:inch_ex, "~> 0.5", only: [:dev, :test]},
       {:optimal, "~> 0.3.3"},
       {:msgpax, "~> 1.1"},
-      {:plug, "~> 1.0"},
-      {:exjsx, "~> 3.2", only: :test}
+      {:plug, ">= 1.0.0"}
     ]
   end
 end