Release version 0.3.0

[Full Changelog](v0.2.1...v0.3.0)

Breaking Change
---------------

- Lock Rubocop to a minor release version in gemspec (Aaron Kromer, #5)

Enhancements
------------

- Adjust common Rubocop configuration (Aaron Kromer, #5)
  - Customize `Style/AndOr` to flag only conditionals allowing `and` / `or` for
    control flow
  - Add `find` to functional method blocks
  - Disable `Style/DoubleNegation` as this is a common Ruby idiom
  - Disable `Style/StringLiteralsInInterpolation` to stay consistent with our
    no preferences for single versus double quotes

Bug Fixes
---------

- Remove `Include` from common Rubocop all cops configuration to fix issues
  with Rubocop 0.56.0+ not seeing all expected files. (Aaron Kromer, #5)

Author: cupakromer

CHANGELOG.md

@@ -1,6 +1,6 @@
-## Development
+## 0.3.0 (June 15, 2018)
 
-[Full Changelog](https://github.com/RadiusNetworks/radius-spec/compare/v0.2.1...master)
+[Full Changelog](https://github.com/RadiusNetworks/radius-spec/compare/v0.2.1...v0.3.0)
 
 ### Breaking Change
 

lib/radius/spec/version.rb

@@ -2,6 +2,6 @@
 
 module Radius
   module Spec
-    VERSION = "0.3.pre"
+    VERSION = "0.3.0"
   end
 end