Bump addressable from 2.4.0 to 2.8.1

Gemfile.lock

@@ -1,34 +1,39 @@
 GEM
   remote: http://rubygems.org/
   specs:
-    addressable (2.4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     builder (3.2.2)
     descendants_tracker (0.0.4)
       thread_safe (~> 0.3, >= 0.3.1)
     diff-lcs (1.2.5)
     faraday (0.9.2)
       multipart-post (>= 1.2, < 3)
     git (1.3.0)
-    github_api (0.14.5)
-      addressable (~> 2.4.0)
+    github_api (0.18.1)
+      addressable (~> 2.4)
       descendants_tracker (~> 0.0.4)
-      faraday (~> 0.8, < 0.10)
+      faraday (~> 0.8)
       hashie (>= 3.4)
       oauth2 (~> 1.0)
     hashie (3.4.6)
     highline (1.7.8)
     json (1.8.3)
-    juwelier (2.1.3)
+    juwelier (2.4.9)
       builder
-      bundler (>= 1.13)
-      git (>= 1.2.5)
+      bundler
+      git
       github_api
-      highline (>= 1.6.15)
-      nokogiri (>= 1.5.10)
+      highline
+      kamelcase (~> 0)
+      nokogiri
+      psych
       rake
       rdoc
-      semver
+      semver2
     jwt (1.5.6)
+    kamelcase (0.0.2)
+      semver2 (~> 3)
     mini_portile2 (2.4.0)
     multi_json (1.12.1)
     multi_xml (0.5.5)
@@ -41,6 +46,9 @@ GEM
       multi_json (~> 1.3)
       multi_xml (~> 0.5)
       rack (>= 1.2, < 3)
+    psych (4.0.6)
+      stringio
+    public_suffix (5.0.0)
     rack (2.0.7)
     rake (11.3.0)
     rdoc (4.2.2)
@@ -58,7 +66,8 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.5.0)
     rspec-support (3.5.0)
-    semver (1.0.1)
+    semver2 (3.4.2)
+    stringio (3.0.2)
     thread_safe (0.3.5)
 
 PLATFORMS