update dependencies

* Fixes Puma security issue

Author: zfletch

.rubocop.yml

@@ -1,3 +1,6 @@
+AllCops:
+  NewCops: enable
+
 Layout/ParameterAlignment:
   EnforcedStyle: with_fixed_indentation
 

Gemfile.lock

@@ -6,14 +6,13 @@ GEM
       bundler (>= 1.2.0, < 3)
       thor (~> 0.18)
     diff-lcs (1.3)
-    jaro_winkler (1.5.4)
     mustermann (1.1.1)
       ruby2_keywords (~> 0.0.1)
     nio4r (2.5.2)
     parallel (1.19.1)
-    parser (2.7.0.4)
+    parser (2.7.1.2)
       ast (~> 2.4.0)
-    puma (4.3.3)
+    puma (4.3.5)
       nio4r (~> 2.0)
     rack (2.2.2)
     rack-protection (2.0.8.1)
@@ -26,23 +25,25 @@ GEM
       rspec-core (~> 3.9.0)
       rspec-expectations (~> 3.9.0)
       rspec-mocks (~> 3.9.0)
-    rspec-core (3.9.1)
-      rspec-support (~> 3.9.1)
-    rspec-expectations (3.9.0)
+    rspec-core (3.9.2)
+      rspec-support (~> 3.9.3)
+    rspec-expectations (3.9.2)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.9.0)
     rspec-mocks (3.9.1)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.9.0)
-    rspec-support (3.9.2)
-    rubocop (0.80.1)
-      jaro_winkler (~> 1.5.1)
+    rspec-support (3.9.3)
+    rubocop (0.84.0)
       parallel (~> 1.10)
       parser (>= 2.7.0.1)
       rainbow (>= 2.2.2, < 4.0)
       rexml
+      rubocop-ast (>= 0.0.3)
       ruby-progressbar (~> 1.7)
-      unicode-display_width (>= 1.4.0, < 1.7)
+      unicode-display_width (>= 1.4.0, < 2.0)
+    rubocop-ast (0.0.3)
+      parser (>= 2.7.0.1)
     ruby-progressbar (1.10.1)
     ruby2_keywords (0.0.2)
     sinatra (2.0.8.1)
@@ -52,7 +53,7 @@ GEM
       tilt (~> 2.0)
     thor (0.20.3)
     tilt (2.0.10)
-    unicode-display_width (1.6.1)
+    unicode-display_width (1.7.0)
 
 PLATFORMS
   ruby