fix travis build

.travis.yml

@@ -1,7 +1,7 @@
 language: ruby
-ruby:
-    - 1.9.3
-    - 2.0.0
-    - 2.1.3
+rvm:
+    - 2.1
+    - 2.2
+    - rbx-2.5
 script:
   rake spec rubocop

Rakefile

@@ -18,4 +18,5 @@ task :coverage do
   Rake::Task['spec'].execute
 end
 
-task default: :spec
+task default: :ci
+task ci: [:spec, :rubocop]

lib/package.rb

@@ -16,6 +16,7 @@ class Package < Module
     end
 
     # Return the package as a value
+    # rubocop:disable Lint/UnusedMethodArgument
     def import_to_value(_binding, namespace, as: nil)
       Package.new(namespace)
     end

test.rb

@@ -1,3 +1,5 @@
+# rubocop:disable all
+
 $LOAD_PATH.push File.expand_path(File.join(File.dirname(__FILE__), 'lib'))
 
 require 'pry'

test2.rb

@@ -1,3 +1,5 @@
+# rubocop:disable all
+
 require 'pp'
 #require 'pry'
 require 'binding_of_caller'