Fix chunky_png ArgumentError

[ci skip]

.gitignore

@@ -3,7 +3,6 @@
 .DS_Store
 xcuserdata
 *.gem
-Gemfile.lock
 fishhook/
 OCHamcrest.framework
 Tests/UnitTests/ocmock/

Scripts/cheatsheet/Gemfile

@@ -15,5 +15,5 @@
 
 source 'https://rubygems.org'
 
-gem 'eyes_selenium', '>= 2.31'      # Enables full page screenshos
+gem 'eyes_selenium', '>= 2.37.0'    # Enables full page screenshos
 gem 'chromedriver-helper', '>= 1.0' # Downloads chromedriver automatically

Scripts/cheatsheet/Gemfile.lock

@@ -0,0 +1,46 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    archive-zip (0.7.0)
+      io-like (~> 0.3.0)
+    childprocess (0.5.9)
+      ffi (~> 1.0, >= 1.0.11)
+    chromedriver-helper (1.0.0)
+      archive-zip (~> 0.7.0)
+      nokogiri (~> 1.6)
+    chunky_png (1.3.6)
+    eyes_selenium (2.37.0)
+      chunky_png (= 1.3.6)
+      faraday
+      oily_png (~> 1.2)
+      oj
+      selenium-webdriver (>= 2.45.0)
+    faraday (0.9.2)
+      multipart-post (>= 1.2, < 3)
+    ffi (1.9.14)
+    io-like (0.3.0)
+    mini_portile2 (2.1.0)
+    multipart-post (2.0.0)
+    nokogiri (1.6.8)
+      mini_portile2 (~> 2.1.0)
+      pkg-config (~> 1.1.7)
+    oily_png (1.2.0)
+      chunky_png (~> 1.3.1)
+    oj (2.17.3)
+    pkg-config (1.1.7)
+    rubyzip (1.2.0)
+    selenium-webdriver (2.53.4)
+      childprocess (~> 0.5)
+      rubyzip (~> 1.0)
+      websocket (~> 1.0)
+    websocket (1.2.3)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  chromedriver-helper (>= 1.0)
+  eyes_selenium (>= 2.37.0)
+
+BUNDLED WITH
+   1.12.5

Scripts/cheatsheet/readme.md

@@ -0,0 +1,13 @@
+# Cheatsheet Render
+
+Renders the cheatsheet HTML to a PNG via Chrome.
+
+#### Usage
+
+- `bundle install`
+- `bundle exec ruby render.rb`
+
+#### Tips
+
+- `gem cleanup` - Remove old versions of gems
+- `bundle update` - Update Gemfile.lock to use new gems