Update dependencies

Author: mmistakes

Gemfile

@@ -4,6 +4,9 @@ source 'https://rubygems.org'
 gem 'breakpoint'
 gem 'html-proofer'
 gem 'rake'
+# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
+gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
+# Performance-booster for watching directories on Windows
 gem 'wdm', '~> 0.1.1', :install_if => Gem.win_platform?
 
 # Jekyll

Gemfile.lock

@@ -146,6 +146,8 @@ GEM
       rubypants
     tzinfo (1.2.5)
       thread_safe (~> 0.1)
+    tzinfo-data (1.2018.9)
+      tzinfo (>= 1.0.0)
     verbal_expressions (0.1.5)
     wdm (0.1.1)
     yell (2.0.7)
@@ -171,7 +173,8 @@ DEPENDENCIES
   jemoji (>= 0.10.2)
   liquid-c
   rake
+  tzinfo-data
   wdm (~> 0.1.1)
 
 BUNDLED WITH
-   1.17.2
+   2.0.1