pin htmlproofer for bug fix

Author: geobrando

Gemfile

@@ -1,5 +1,5 @@
 source 'https://rubygems.org'
 gem 'github-pages'
-gem 'html-proofer', github: 'gjtorikian/html-proofer', :tag => 'v2.4.2'
+gem 'html-proofer', github: 'gjtorikian/html-proofer', :ref => 'cfdaad62e2'
 gem 'geojsonlint'
 gem 'httparty'

Gemfile.lock

@@ -1,9 +1,9 @@
 GIT
   remote: git://github.com/gjtorikian/html-proofer.git
-  revision: f1f645f19a87fba195f32c99a9f84f0435e36dd9
-  tag: v2.4.2
+  revision: cfdaad62e2c75a8a610fe7de56c4e1694cf7523c
+  ref: cfdaad62e2
   specs:
-    html-proofer (2.4.2)
+    html-proofer (2.5.1)
       addressable (~> 2.3)
       colored (~> 1.2)
       mercenary (~> 0.3.2)
@@ -38,7 +38,7 @@ GEM
     coffee-script-source (1.8.0)
     colorator (0.1)
     colored (1.2)
-    ethon (0.7.4)
+    ethon (0.8.0)
       ffi (>= 1.3.0)
     execjs (2.2.1)
     fast-stemmer (1.0.2)
@@ -138,8 +138,8 @@ GEM
       hitimes
     toml (0.1.1)
       parslet (~> 1.5.0)
-    typhoeus (0.7.3)
-      ethon (>= 0.7.4)
+    typhoeus (0.8.0)
+      ethon (>= 0.8.0)
     tzinfo (1.2.2)
       thread_safe (~> 0.1)
     yajl-ruby (1.1.0)