Gem updates (rspec, vcr, guard)

Gemfile

 source "http://rubygems.org"
 
 group :development, :test do
-  gem 'guard', '~> 1.5.0'
-  gem 'guard-rspec', '~> 2.1.0'
-  gem 'listen', '~> 0.5.0'
-  gem 'rspec', '~> 2.0'
+  gem 'guard-rspec', '~> 4.0'
+  gem 'listen', '~> 3.0.0'
+  gem 'rspec', '~> 3.0'
   gem 'rspec-its', '~> 1.0.0'
   gem 'rubocop', '0.49.1', require: false
   gem 'simplecov', '~> 0.9.0', require: false
-  gem 'vcr', '~> 2.4.0'
+  gem 'vcr', '~> 4.0'
   gem 'webmock', '~> 1.9.0'
 end

Gemfile.lock

@@ -9,18 +9,32 @@ GEM
       safe_yaml (~> 1.0.0)
     diff-lcs (1.3)
     docile (1.1.5)
-    guard (1.5.4)
-      listen (>= 0.4.2)
-      lumberjack (>= 1.0.2)
-      pry (>= 0.9.10)
-      thor (>= 0.14.6)
-    guard-rspec (2.1.2)
-      guard (>= 1.1)
-      rspec (~> 2.11)
-    listen (0.5.3)
+    ffi (1.9.25)
+    formatador (0.2.5)
+    guard (2.14.2)
+      formatador (>= 0.2.4)
+      listen (>= 2.7, < 4.0)
+      lumberjack (>= 1.0.12, < 2.0)
+      nenv (~> 0.1)
+      notiffany (~> 0.0)
+      pry (>= 0.9.12)
+      shellany (~> 0.0)
+      thor (>= 0.18.1)
+    guard-compat (1.2.1)
+    guard-rspec (4.7.3)
+      guard (~> 2.1)
+      guard-compat (~> 1.1)
+      rspec (>= 2.99.0, < 4.0)
+    listen (3.0.8)
+      rb-fsevent (~> 0.9, >= 0.9.4)
+      rb-inotify (~> 0.9, >= 0.9.7)
     lumberjack (1.0.13)
     method_source (0.9.0)
     multi_json (1.13.1)
+    nenv (0.3.0)
+    notiffany (0.1.1)
+      nenv (~> 0.1)
+      shellany (~> 0.0)
     parallel (1.12.1)
     parser (2.5.1.2)
       ast (~> 2.4.0)
@@ -32,17 +46,25 @@ GEM
     rainbow (2.2.2)
       rake
     rake (12.3.1)
-    rspec (2.99.0)
-      rspec-core (~> 2.99.0)
-      rspec-expectations (~> 2.99.0)
-      rspec-mocks (~> 2.99.0)
-    rspec-core (2.99.2)
-    rspec-expectations (2.99.2)
-      diff-lcs (>= 1.1.3, < 2.0)
+    rb-fsevent (0.10.3)
+    rb-inotify (0.9.10)
+      ffi (>= 0.5.0, < 2)
+    rspec (3.7.0)
+      rspec-core (~> 3.7.0)
+      rspec-expectations (~> 3.7.0)
+      rspec-mocks (~> 3.7.0)
+    rspec-core (3.7.1)
+      rspec-support (~> 3.7.0)
+    rspec-expectations (3.7.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.7.0)
     rspec-its (1.0.1)
       rspec-core (>= 2.99.0.beta1)
       rspec-expectations (>= 2.99.0.beta1)
-    rspec-mocks (2.99.4)
+    rspec-mocks (3.7.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.7.0)
+    rspec-support (3.7.1)
     rubocop (0.49.1)
       parallel (~> 1.10)
       parser (>= 2.3.3.1, < 3.0)
@@ -52,6 +74,7 @@ GEM
       unicode-display_width (~> 1.0, >= 1.0.1)
     ruby-progressbar (1.9.0)
     safe_yaml (1.0.4)
+    shellany (0.0.1)
     simplecov (0.9.2)
       docile (~> 1.1.0)
       multi_json (~> 1.0)
@@ -59,7 +82,7 @@ GEM
     simplecov-html (0.9.0)
     thor (0.20.0)
     unicode-display_width (1.4.0)
-    vcr (2.4.0)
+    vcr (4.0.0)
     webmock (1.9.3)
       addressable (>= 2.2.7)
       crack (>= 0.3.2)
@@ -68,14 +91,13 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  guard (~> 1.5.0)
-  guard-rspec (~> 2.1.0)
-  listen (~> 0.5.0)
-  rspec (~> 2.0)
+  guard-rspec (~> 4.0)
+  listen (~> 3.0.0)
+  rspec (~> 3.0)
   rspec-its (~> 1.0.0)
   rubocop (= 0.49.1)
   simplecov (~> 0.9.0)
-  vcr (~> 2.4.0)
+  vcr (~> 4.0)
   webmock (~> 1.9.0)
 
 BUNDLED WITH