cleaned up Gemfile, added .ruby-gemset, rubocopped

.ruby-gemset

@@ -0,0 +1 @@
+gherkin_lint

.travis.yml

@@ -1,4 +1,5 @@
 language: ruby
 rvm:
- - 2.1.0
- - 2.0.0
+ - 2.5
+ - 2.4
+ - 2.3

Gemfile

@@ -3,9 +3,9 @@ source 'https://rubygems.org'
 gemspec
 
 gem 'amatch'
-gem 'aruba', '1.0.0.pre.alpha.2'
-gem 'engtagger', '>=0.2.1'
-gem 'gherkin', '>=4.0.0'
+gem 'aruba'
+gem 'engtagger', '>= 0.2.1'
+gem 'gherkin', '~> 5.0'
 # TODO: update to gherkin4 gem 'gherkin_format'
 # TODO: update to gherkin4 gem 'gherkin_language'
 gem 'rake'

gherkin_lint.gemspec

@@ -1,10 +1,10 @@
 Gem::Specification.new do |s|
   s.name        = 'gherkin_lint'
-  s.version     = '1.2.2'
+  s.version     = '1.2.3'
   s.date        = '2017-12-04'
   s.summary     = 'Gherkin Lint'
   s.description = 'Lint Gherkin Files'
-  s.authors     = ['Stefan Rohe', 'Nishtha Argawal', 'John Gluck']
+  s.authors     = ['Stefan Rohe', 'Nishtha Argawal', 'John Gluck', 'Michael J. Nohai']
   s.homepage    = 'http://github.com/funkwerk/gherkin_lint/'
   s.license     = 'MIT'
   s.files       = `git ls-files`.split("\n")

lib/gherkin_lint.rb

@@ -34,11 +34,12 @@
 require 'multi_json'
 require 'set'
 require 'gherkin_lint/configuration'
+
 module GherkinLint
   # gherkin linter
   class GherkinLint
     attr_accessor :verbose
-    default_file = File.expand_path('../../', __FILE__), '**/config', 'default.yml'
+    default_file = File.expand_path('..', __dir__), '**/config', 'default.yml'
     DEFAULT_CONFIG = Dir.glob(File.join(default_file)).first.freeze
     LINTER = Linter.descendants