Upgrade boxen version to 2.5.0

Closes #554

Gemfile

@@ -1,6 +1,6 @@
 source "https://rubygems.org"
 
-gem "boxen",                  "~> 2.3.0"
+gem "boxen",                  "~> 2.5"
 gem "hiera",                  "~> 1.3.2"
 gem "librarian-puppet",       "~> 0.9.14"
 gem "puppet",                 "3.4.3"

Gemfile.lock

@@ -1,19 +1,19 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.3.5)
+    addressable (2.3.6)
     ansi (1.4.3)
-    aws-sdk (1.37.0)
+    aws-sdk (1.38.0)
       json (~> 1.4)
       nokogiri (>= 1.4.4)
       uuidtools (~> 2.1)
-    boxen (2.3.0)
+    boxen (2.5.0)
       ansi (~> 1.4)
       hiera (~> 1.0)
       highline (~> 1.6)
       json_pure (>= 1.7.7, < 2.0)
-      librarian-puppet (~> 0.9.9)
+      librarian-puppet (~> 0.9.10)
-      octokit (~> 2.3.0)
+      octokit (~> 2.7, >= 2.7.1)
       puppet (~> 3.0)
     builder (3.2.2)
     deep_merge (1.0.1)
@@ -29,20 +29,20 @@ GEM
     librarian (0.1.2)
       highline
       thor (~> 0.15)
-    librarian-puppet (0.9.14)
+    librarian-puppet (0.9.15)
       json
       librarian (>= 0.1.2)
       open3_backport
     metaclass (0.0.4)
-    mini_portile (0.5.2)
+    mini_portile (0.5.3)
     mocha (1.0.0)
       metaclass (~> 0.0.1)
     multipart-post (2.0.0)
     net-ssh (2.8.0)
     nokogiri (1.6.1)
       mini_portile (~> 0.5.0)
-    octokit (2.3.1)
+    octokit (2.7.2)
-      sawyer (~> 0.5.1)
+      sawyer (~> 0.5.2)
     open3_backport (0.0.3)
       open4 (~> 1.3.0)
     open4 (1.3.3)
@@ -75,7 +75,7 @@ GEM
     sawyer (0.5.4)
       addressable (~> 2.3.5)
       faraday (~> 0.8, < 0.10)
-    thor (0.19.0)
+    thor (0.19.1)
     trollop (2.0)
     uuidtools (2.1.4)
 
@@ -84,7 +84,7 @@ PLATFORMS
 
 DEPENDENCIES
   aws-sdk (~> 1.37)
-  boxen (~> 2.3.0)
+  boxen (~> 2.5)
   deep_merge (~> 1.0)
   hiera (~> 1.3.2)
   librarian-puppet (~> 0.9.14)