Update rubocop requirement from ~> 0.31 to ~> 1.31

Gemfile.lock

@@ -9,7 +9,7 @@ GEM
   remote: http://rubygems.org/
   specs:
     addressable (2.4.0)
-    ast (2.3.0)
+    ast (2.4.2)
     awesome_print (1.7.0)
     builder (3.2.2)
     byebug (9.0.5)
@@ -56,20 +56,21 @@ GEM
       multi_json (~> 1.3)
       multi_xml (~> 0.5)
       rack (>= 1.2, < 3)
-    parser (2.3.1.2)
-      ast (~> 2.2)
+    parallel (1.23.0)
+    parser (3.2.2.0)
+      ast (~> 2.4.1)
     pkg-config (1.1.7)
-    powerpack (0.1.1)
     rack (1.6.4)
     rack-protection (1.5.3)
       rack
-    rainbow (2.1.0)
+    rainbow (3.1.1)
     rake (11.2.2)
     rdoc (3.12.2)
       json (~> 1.4)
     redis (3.3.1)
     redis-namespace (1.5.2)
       redis (~> 3.0, >= 3.0.4)
+    regexp_parser (2.8.0)
     resque (1.26.0)
       mono_logger (~> 1.0)
       multi_json (~> 1.0)
@@ -80,6 +81,7 @@ GEM
       rake
       resque (~> 1.22)
       trollop (~> 2.0)
+    rexml (3.2.5)
     rspec (3.1.0)
       rspec-core (~> 3.1.0)
       rspec-expectations (~> 3.1.0)
@@ -92,13 +94,18 @@ GEM
     rspec-mocks (3.1.3)
       rspec-support (~> 3.1.0)
     rspec-support (3.1.2)
-    rubocop (0.42.0)
-      parser (>= 2.3.1.1, < 3.0)
-      powerpack (~> 0.1)
-      rainbow (>= 1.99.1, < 3.0)
+    rubocop (1.31.0)
+      parallel (~> 1.10)
+      parser (>= 3.1.0.0)
+      rainbow (>= 2.2.2, < 4.0)
+      regexp_parser (>= 1.8, < 3.0)
+      rexml (>= 3.2.5, < 4.0)
+      rubocop-ast (>= 1.18.0, < 2.0)
       ruby-progressbar (~> 1.7)
-      unicode-display_width (~> 1.0, >= 1.0.1)
-    ruby-progressbar (1.8.1)
+      unicode-display_width (>= 1.4.0, < 3.0)
+    rubocop-ast (1.28.0)
+      parser (>= 3.2.1.0)
+    ruby-progressbar (1.13.0)
     simplecov (0.12.0)
       docile (~> 1.1.0)
       json (>= 1.8, < 3)
@@ -112,7 +119,7 @@ GEM
     thread_safe (0.3.5)
     tilt (2.0.5)
     trollop (2.1.2)
-    unicode-display_width (1.1.0)
+    unicode-display_width (2.4.2)
     vegas (0.1.11)
       rack (>= 1.0.0)
 
@@ -128,7 +135,7 @@ DEPENDENCIES
   rdoc (~> 3.12)
   resque-cluster!
   rspec (~> 3.1.0)
-  rubocop (~> 0.31)
+  rubocop (~> 1.31)
   simplecov
   sys-proctable
 

resque-cluster.gemspec

@@ -28,7 +28,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'bundler', '~> 1.7'
   s.add_development_dependency 'jeweler', '~> 2.0.1'
   s.add_development_dependency 'simplecov', '>= 0'
-  s.add_development_dependency 'rubocop', '~> 0.31'
+  s.add_development_dependency 'rubocop', '~> 1.31'
   s.add_development_dependency 'sys-proctable'
   s.add_development_dependency 'ffi'
 end