Bump mdl from 0.5.0 to 0.10.0

This contains a security fix since we're upgrading kramdown.

Gemfile

@@ -97,7 +97,7 @@ group :development do
   gem "capistrano3-puma", "~> 4.0.0"
   gem "erb_lint", require: false
   gem "github_changelog_generator", "~> 1.15.0"
-  gem "mdl", "~> 0.5.0", require: false
+  gem "mdl", "~> 0.10.0", require: false
   gem "rubocop", "~> 0.83.0", require: false
   gem "rubocop-performance", "~> 1.6.1", require: false
   gem "rubocop-rails", "~> 2.3.2", require: false

Gemfile.lock

@@ -127,6 +127,7 @@ GEM
       rack (>= 1.4)
       rack-proxy (>= 0.6.0)
       selenium-webdriver (~> 3.0)
+    chef-utils (16.3.45)
     childprocess (0.9.0)
       ffi (~> 1.0, >= 1.0.11)
     chronic (0.10.2)
@@ -312,7 +313,10 @@ GEM
     kaminari-core (1.2.1)
     knapsack_pro (1.15.0)
       rake
-    kramdown (1.17.0)
+    kramdown (2.3.0)
+      rexml
+    kramdown-parser-gfm (1.1.0)
+      kramdown (~> 2.0)
     launchy (2.4.3)
       addressable (~> 2.3)
     letter_opener (1.6.0)
@@ -326,10 +330,12 @@ GEM
       nokogiri (>= 1.5.9)
     mail (2.7.1)
       mini_mime (>= 0.1.1)
-    mdl (0.5.0)
-      kramdown (~> 1.12, >= 1.12.0)
-      mixlib-cli (~> 1.7, >= 1.7.0)
-      mixlib-config (~> 2.2, >= 2.2.1)
+    mdl (0.10.0)
+      kramdown (~> 2.3)
+      kramdown-parser-gfm (~> 1.1)
+      mixlib-cli (~> 2.1, >= 2.1.1)
+      mixlib-config (>= 2.2.1, < 4)
+      mixlib-shellout
     method_source (1.0.0)
     mime-types (3.1)
       mime-types-data (~> 3.2015)
@@ -338,9 +344,11 @@ GEM
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     minitest (5.14.1)
-    mixlib-cli (1.7.0)
-    mixlib-config (2.2.13)
+    mixlib-cli (2.1.6)
+    mixlib-config (3.0.6)
       tomlrb
+    mixlib-shellout (3.1.2)
+      chef-utils
     multi_json (1.13.1)
     multi_xml (0.6.0)
     multipart-post (2.0.0)
@@ -559,7 +567,7 @@ GEM
     thread_safe (0.3.6)
     tilt (2.0.8)
     tins (1.16.3)
-    tomlrb (1.2.7)
+    tomlrb (1.3.0)
     translator-text (0.1.0)
       dry-struct (~> 0.5.0)
       httparty (~> 0.15)
@@ -654,7 +662,7 @@ DEPENDENCIES
   knapsack_pro (~> 1.15.0)
   launchy (~> 2.4.3)
   letter_opener_web (~> 1.3.4)
-  mdl (~> 0.5.0)
+  mdl (~> 0.10.0)
   newrelic_rpm (~> 4.1.0.333)
   omniauth (~> 1.9.0)
   omniauth-facebook (~> 4.0.0)