Updating nokogiri and other dependencies

Also updating travis build version before it goes unsupported.

Using ruby version 2.4.2

Author: glenrobson

.ruby-version

@@ -1 +1 @@
-2.2.3
+2.4.2

.travis.yml

@@ -1,4 +1,5 @@
-sudo: false
+sudo: required
+dist: trusty
 
 before_install:
   - export NOKOGIRI_USE_SYSTEM_LIBRARIES=true
@@ -14,10 +15,9 @@ script:
 # environment
 language: ruby
 rvm:
-  - "2.2.3"
+  - 2.4.2
 jdk:
   - oraclejdk8
-dist: precise
 
 before_deploy: if [[ ${TRAVIS_PULL_REQUEST_BRANCH:-$TRAVIS_BRANCH} != master ]]; then
     bundle exec jekyll clean && bundle exec jekyll build --baseurl /api/${TRAVIS_PULL_REQUEST_BRANCH:-$TRAVIS_BRANCH};

Gemfile.lock

@@ -1,44 +1,45 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (5.0.2)
+    activesupport (5.1.4)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (~> 0.7)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.5.1)
-      public_suffix (~> 2.0, >= 2.0.2)
-    airbrussh (1.1.2)
+    addressable (2.5.2)
+      public_suffix (>= 2.0.2, < 4.0)
+    airbrussh (1.3.0)
       sshkit (>= 1.6.1, != 1.7.0)
-    capistrano (3.8.0)
+    capistrano (3.10.1)
       airbrussh (>= 1.0.0)
       i18n
       rake (>= 10.0.0)
       sshkit (>= 1.9.0)
-    capistrano-bundler (1.2.0)
+    capistrano-bundler (1.3.0)
       capistrano (~> 3.1)
       sshkit (~> 1.2)
     capistrano-rvm (0.1.2)
       capistrano (~> 3.0)
       sshkit (~> 1.2)
     colorator (1.1.0)
-    colored (1.2)
+    colorize (0.8.1)
     concurrent-ruby (1.0.5)
     diff-lcs (1.3)
-    ethon (0.10.1)
+    ethon (0.11.0)
       ffi (>= 1.3.0)
     ffi (1.9.18)
     forwardable-extended (2.6.0)
-    html-proofer (3.6.0)
+    html-proofer (3.8.0)
       activesupport (>= 4.2, < 6.0)
       addressable (~> 2.3)
-      colored (~> 1.2)
+      colorize (~> 0.8)
       mercenary (~> 0.3.2)
-      nokogiri (~> 1.5)
+      nokogiri (~> 1.8.1)
       parallel (~> 1.3)
-      typhoeus (~> 0.7)
+      typhoeus (~> 1.3)
       yell (~> 2.0)
-    i18n (0.8.1)
+    i18n (0.9.3)
+      concurrent-ruby (~> 1.0)
     jekyll (3.4.3)
       addressable (~> 2.4)
       colorator (~> 1.0)
@@ -50,58 +51,64 @@ GEM
       pathutil (~> 0.9)
       rouge (~> 1.7)
       safe_yaml (~> 1.0)
-    jekyll-redirect-from (0.12.1)
+    jekyll-redirect-from (0.13.0)
       jekyll (~> 3.3)
-    jekyll-sass-converter (1.5.0)
+    jekyll-sass-converter (1.5.1)
       sass (~> 3.4)
-    jekyll-sitemap (1.0.0)
+    jekyll-sitemap (1.1.1)
       jekyll (~> 3.3)
-    jekyll-watch (1.5.0)
-      listen (~> 3.0, < 3.1)
+    jekyll-watch (1.5.1)
+      listen (~> 3.0)
     kramdown (1.12.0)
     liquid (3.0.6)
-    listen (3.0.8)
+    listen (3.1.5)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
+      ruby_dep (~> 1.2)
     mercenary (0.3.6)
-    mini_portile2 (2.1.0)
-    minitest (5.10.1)
+    mini_portile2 (2.3.0)
+    minitest (5.11.1)
     net-scp (1.2.1)
       net-ssh (>= 2.6.5)
-    net-ssh (4.1.0)
-    nokogiri (1.7.1)
-      mini_portile2 (~> 2.1.0)
-    parallel (1.11.1)
-    pathutil (0.14.0)
+    net-ssh (4.2.0)
+    nokogiri (1.8.1)
+      mini_portile2 (~> 2.3.0)
+    parallel (1.12.1)
+    pathutil (0.16.1)
       forwardable-extended (~> 2.6)
-    public_suffix (2.0.5)
-    rake (12.0.0)
-    rb-fsevent (0.9.8)
-    rb-inotify (0.9.8)
-      ffi (>= 0.5.0)
+    public_suffix (3.0.1)
+    rake (12.3.0)
+    rb-fsevent (0.10.2)
+    rb-inotify (0.9.10)
+      ffi (>= 0.5.0, < 2)
     rouge (1.11.1)
-    rspec (3.5.0)
-      rspec-core (~> 3.5.0)
-      rspec-expectations (~> 3.5.0)
-      rspec-mocks (~> 3.5.0)
-    rspec-core (3.5.4)
-      rspec-support (~> 3.5.0)
-    rspec-expectations (3.5.0)
+    rspec (3.7.0)
+      rspec-core (~> 3.7.0)
+      rspec-expectations (~> 3.7.0)
+      rspec-mocks (~> 3.7.0)
+    rspec-core (3.7.1)
+      rspec-support (~> 3.7.0)
+    rspec-expectations (3.7.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.5.0)
-    rspec-mocks (3.5.0)
+      rspec-support (~> 3.7.0)
+    rspec-mocks (3.7.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.5.0)
-    rspec-support (3.5.0)
+      rspec-support (~> 3.7.0)
+    rspec-support (3.7.0)
+    ruby_dep (1.5.0)
     safe_yaml (1.0.4)
-    sass (3.4.23)
-    sshkit (1.13.1)
+    sass (3.5.5)
+      sass-listen (~> 4.0.0)
+    sass-listen (4.0.0)
+      rb-fsevent (~> 0.9, >= 0.9.4)
+      rb-inotify (~> 0.9, >= 0.9.7)
+    sshkit (1.15.1)
       net-scp (>= 1.1.2)
       net-ssh (>= 2.8.0)
     thread_safe (0.3.6)
-    typhoeus (0.8.0)
-      ethon (>= 0.8.0)
-    tzinfo (1.2.3)
+    typhoeus (1.3.0)
+      ethon (>= 0.9.0)
+    tzinfo (1.2.4)
       thread_safe (~> 0.1)
     yell (2.0.7)
 
@@ -121,4 +128,4 @@ DEPENDENCIES
   rspec
 
 BUNDLED WITH
-   1.15.3
+   1.16.1