Bump to 6.1.0 and readd VERSION constant

Author: oreoshake

.ruby-version

@@ -1 +1 @@
-2.4.2
+2.6.1

CHANGELOG.md

@@ -1,3 +1,7 @@
+## 6.1
+
+Adds support for navigate-to, prefetch-src, and require-sri-for #395
+
 ## 6.0
 
 - See the [upgrading to 6.0](docs/upgrading-to-6-0.md) guide for the breaking changes.

lib/secure_headers/version.rb

@@ -0,0 +1,3 @@
+module SecureHeaders
+  VERSION = "6.1.0"
+end

secure_headers.gemspec

@@ -1,8 +1,12 @@
+lib = File.expand_path("../lib", __FILE__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require "secure_headers/version"
+
 # -*- encoding: utf-8 -*-
 # frozen_string_literal: true
 Gem::Specification.new do |gem|
   gem.name          = "secure_headers"
-  gem.version       = "6.0.0"
+  gem.version       = SecureHeaders::VERSION
   gem.authors       = ["Neil Matatall"]
   gem.email         = ["neil.matatall@gmail.com"]
   gem.description   = "Manages application of security headers with many safe defaults."