Update Ruby dependency

Gemfile.lock

@@ -1,59 +1,60 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    CFPropertyList (2.3.5)
-    activesupport (4.2.10)
+    CFPropertyList (3.0.0)
+    activesupport (4.2.11.1)
       i18n (~> 0.7)
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
     addressable (2.4.0)
-    backports (3.10.3)
+    atomos (0.1.3)
+    backports (3.12.0)
     claide (1.0.2)
-    cocoapods (1.3.1)
+    cocoapods (1.6.1)
       activesupport (>= 4.0.2, < 5)
       claide (>= 1.0.2, < 2.0)
-      cocoapods-core (= 1.3.1)
-      cocoapods-deintegrate (>= 1.0.1, < 2.0)
-      cocoapods-downloader (>= 1.1.3, < 2.0)
+      cocoapods-core (= 1.6.1)
+      cocoapods-deintegrate (>= 1.0.2, < 2.0)
+      cocoapods-downloader (>= 1.2.2, < 2.0)
       cocoapods-plugins (>= 1.0.0, < 2.0)
       cocoapods-search (>= 1.0.0, < 2.0)
       cocoapods-stats (>= 1.0.0, < 2.0)
-      cocoapods-trunk (>= 1.2.0, < 2.0)
+      cocoapods-trunk (>= 1.3.1, < 2.0)
       cocoapods-try (>= 1.1.0, < 2.0)
       colored2 (~> 3.1)
       escape (~> 0.0.4)
-      fourflusher (~> 2.0.1)
+      fourflusher (>= 2.2.0, < 3.0)
       gh_inspector (~> 1.0)
-      molinillo (~> 0.5.7)
+      molinillo (~> 0.6.6)
       nap (~> 1.0)
-      ruby-macho (~> 1.1)
-      xcodeproj (>= 1.5.1, < 2.0)
-    cocoapods-core (1.3.1)
+      ruby-macho (~> 1.4)
+      xcodeproj (>= 1.8.1, < 2.0)
+    cocoapods-core (1.6.1)
       activesupport (>= 4.0.2, < 6)
       fuzzy_match (~> 2.0.4)
       nap (~> 1.0)
-    cocoapods-deintegrate (1.0.1)
-    cocoapods-downloader (1.1.3)
+    cocoapods-deintegrate (1.0.4)
+    cocoapods-downloader (1.2.2)
     cocoapods-plugins (1.0.0)
       nap
     cocoapods-search (1.0.0)
-    cocoapods-stats (1.0.0)
-    cocoapods-trunk (1.3.0)
+    cocoapods-stats (1.1.0)
+    cocoapods-trunk (1.3.1)
       nap (>= 0.8, < 2.0)
       netrc (~> 0.11)
     cocoapods-try (1.1.0)
     colored2 (3.1.2)
-    concurrent-ruby (1.0.5)
+    concurrent-ruby (1.1.5)
     escape (0.0.4)
-    ethon (0.11.0)
+    ethon (0.12.0)
       ffi (>= 1.3.0)
-    faraday (0.13.1)
+    faraday (0.15.4)
       multipart-post (>= 1.2, < 3)
-    faraday_middleware (0.12.2)
+    faraday_middleware (0.13.1)
       faraday (>= 0.7.4, < 1.0)
-    ffi (1.9.18)
-    fourflusher (2.0.1)
+    ffi (1.10.0)
+    fourflusher (2.2.0)
     fuzzy_match (2.0.4)
     gh (0.15.1)
       addressable (~> 2.4.0)
@@ -62,28 +63,28 @@ GEM
       multi_json (~> 1.0)
       net-http-persistent (~> 2.9)
       net-http-pipeline
-    gh_inspector (1.0.3)
-    highline (1.7.8)
-    i18n (0.9.1)
+    gh_inspector (1.1.3)
+    highline (1.7.10)
+    i18n (0.9.5)
       concurrent-ruby (~> 1.0)
-    json (2.1.0)
+    json (2.2.0)
     launchy (2.4.3)
       addressable (~> 2.3)
-    minitest (5.10.3)
-    molinillo (0.5.7)
-    multi_json (1.12.2)
+    minitest (5.11.3)
+    molinillo (0.6.6)
+    multi_json (1.13.1)
     multipart-post (2.0.0)
-    nanaimo (0.2.3)
+    nanaimo (0.2.6)
     nap (1.1.0)
     net-http-persistent (2.9.4)
     net-http-pipeline (1.0.1)
     netrc (0.11.0)
     pusher-client (0.6.2)
       json
       websocket (~> 1.0)
-    ruby-macho (1.1.0)
+    ruby-macho (1.4.0)
     thread_safe (0.3.6)
-    travis (1.8.8)
+    travis (1.8.9)
       backports
       faraday (~> 0.9)
       faraday_middleware (~> 0.9, >= 0.9.1)
@@ -94,14 +95,15 @@ GEM
       typhoeus (~> 0.6, >= 0.6.8)
     typhoeus (0.8.0)
       ethon (>= 0.8.0)
-    tzinfo (1.2.4)
+    tzinfo (1.2.5)
       thread_safe (~> 0.1)
-    websocket (1.2.5)
-    xcodeproj (1.5.3)
-      CFPropertyList (~> 2.3.3)
+    websocket (1.2.8)
+    xcodeproj (1.8.2)
+      CFPropertyList (>= 2.3.3, < 4.0)
+      atomos (~> 0.1.3)
       claide (>= 1.0.2, < 2.0)
       colored2 (~> 3.1)
-      nanaimo (~> 0.2.3)
+      nanaimo (~> 0.2.6)
 
 PLATFORMS
   ruby
@@ -111,4 +113,4 @@ DEPENDENCIES
   travis (~> 1.8, >= 1.8.6)
 
 BUNDLED WITH
-   1.16.0
+   1.17.1