Update Jekyll and config files

- Fix an old Jekyll version issue with updating Github page site.

Author: gbaman

Gemfile

@@ -1,10 +1,2 @@
-source "https://rubygems.org"
-
-gem "jekyll", "~> 2.5.3"
-# with Ruby 2.0 on OS X, you may need to install
-# it manually with --with-iconv-dir:
-#
-# gem install iconv -- --with-iconv-dir=~/.rvm/usr
-gem "iconv"
-gem "albino"
-gem "jekyll-sitemap"
+source 'https://rubygems.org'
+gem 'github-pages', group: :jekyll_plugins

Gemfile.lock

@@ -1,77 +1,217 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    albino (1.3.3)
-      posix-spawn (>= 0.3.6)
-    blankslate (2.1.2.4)
-    celluloid (0.16.0)
-      timers (~> 4.0.0)
-    classifier-reborn (2.0.3)
-      fast-stemmer (~> 1.0)
-    coffee-script (2.3.0)
+    activesupport (4.2.8)
+      i18n (~> 0.7)
+      minitest (~> 5.1)
+      thread_safe (~> 0.3, >= 0.3.4)
+      tzinfo (~> 1.1)
+    addressable (2.5.2)
+      public_suffix (>= 2.0.2, < 4.0)
+    coffee-script (2.4.1)
       coffee-script-source
       execjs
-    coffee-script-source (1.8.0)
-    colorator (0.1)
-    execjs (2.2.2)
-    fast-stemmer (1.0.2)
-    ffi (1.9.6)
-    hitimes (1.2.2)
-    iconv (1.0.4)
-    jekyll (2.5.3)
-      classifier-reborn (~> 2.0)
-      colorator (~> 0.1)
-      jekyll-coffeescript (~> 1.0)
-      jekyll-gist (~> 1.0)
-      jekyll-paginate (~> 1.0)
+    coffee-script-source (1.12.2)
+    colorator (1.1.0)
+    ethon (0.10.1)
+      ffi (>= 1.3.0)
+    execjs (2.7.0)
+    faraday (0.13.1)
+      multipart-post (>= 1.2, < 3)
+    ffi (1.9.18)
+    forwardable-extended (2.6.0)
+    gemoji (3.0.0)
+    github-pages (157)
+      activesupport (= 4.2.8)
+      github-pages-health-check (= 1.3.5)
+      jekyll (= 3.5.2)
+      jekyll-avatar (= 0.4.2)
+      jekyll-coffeescript (= 1.0.1)
+      jekyll-default-layout (= 0.1.4)
+      jekyll-feed (= 0.9.2)
+      jekyll-gist (= 1.4.1)
+      jekyll-github-metadata (= 2.9.1)
+      jekyll-mentions (= 1.2.0)
+      jekyll-optional-front-matter (= 0.2.0)
+      jekyll-paginate (= 1.1.0)
+      jekyll-readme-index (= 0.1.0)
+      jekyll-redirect-from (= 0.12.1)
+      jekyll-relative-links (= 0.4.1)
+      jekyll-sass-converter (= 1.5.0)
+      jekyll-seo-tag (= 2.3.0)
+      jekyll-sitemap (= 1.0.0)
+      jekyll-swiss (= 0.4.0)
+      jekyll-theme-architect (= 0.1.0)
+      jekyll-theme-cayman (= 0.1.0)
+      jekyll-theme-dinky (= 0.1.0)
+      jekyll-theme-hacker (= 0.1.0)
+      jekyll-theme-leap-day (= 0.1.0)
+      jekyll-theme-merlot (= 0.1.0)
+      jekyll-theme-midnight (= 0.1.0)
+      jekyll-theme-minimal (= 0.1.0)
+      jekyll-theme-modernist (= 0.1.0)
+      jekyll-theme-primer (= 0.5.2)
+      jekyll-theme-slate (= 0.1.0)
+      jekyll-theme-tactile (= 0.1.0)
+      jekyll-theme-time-machine (= 0.1.0)
+      jekyll-titles-from-headings (= 0.4.0)
+      jemoji (= 0.8.0)
+      kramdown (= 1.13.2)
+      liquid (= 4.0.0)
+      listen (= 3.0.6)
+      mercenary (~> 0.3)
+      minima (= 2.1.1)
+      rouge (= 1.11.1)
+      terminal-table (~> 1.4)
+    github-pages-health-check (1.3.5)
+      addressable (~> 2.3)
+      net-dns (~> 0.8)
+      octokit (~> 4.0)
+      public_suffix (~> 2.0)
+      typhoeus (~> 0.7)
+    html-pipeline (2.7.0)
+      activesupport (>= 2)
+      nokogiri (>= 1.4)
+    i18n (0.8.6)
+    jekyll (3.5.2)
+      addressable (~> 2.4)
+      colorator (~> 1.0)
       jekyll-sass-converter (~> 1.0)
       jekyll-watch (~> 1.1)
       kramdown (~> 1.3)
-      liquid (~> 2.6.1)
+      liquid (~> 4.0)
       mercenary (~> 0.3.3)
-      pygments.rb (~> 0.6.0)
-      redcarpet (~> 3.1)
+      pathutil (~> 0.9)
+      rouge (~> 1.7)
       safe_yaml (~> 1.0)
-      toml (~> 0.1.0)
+    jekyll-avatar (0.4.2)
+      jekyll (~> 3.0)
     jekyll-coffeescript (1.0.1)
       coffee-script (~> 2.2)
-    jekyll-gist (1.1.0)
+    jekyll-default-layout (0.1.4)
+      jekyll (~> 3.0)
+    jekyll-feed (0.9.2)
+      jekyll (~> 3.3)
+    jekyll-gist (1.4.1)
+      octokit (~> 4.2)
+    jekyll-github-metadata (2.9.1)
+      jekyll (~> 3.1)
+      octokit (~> 4.0, != 4.4.0)
+    jekyll-mentions (1.2.0)
+      activesupport (~> 4.0)
+      html-pipeline (~> 2.3)
+      jekyll (~> 3.0)
+    jekyll-optional-front-matter (0.2.0)
+      jekyll (~> 3.0)
     jekyll-paginate (1.1.0)
-    jekyll-sass-converter (1.3.0)
-      sass (~> 3.2)
-    jekyll-sitemap (0.8.1)
-    jekyll-watch (1.2.0)
-      listen (~> 2.7)
-    kramdown (1.5.0)
-    liquid (2.6.1)
-    listen (2.8.4)
-      celluloid (>= 0.15.2)
+    jekyll-readme-index (0.1.0)
+      jekyll (~> 3.0)
+    jekyll-redirect-from (0.12.1)
+      jekyll (~> 3.3)
+    jekyll-relative-links (0.4.1)
+      jekyll (~> 3.3)
+    jekyll-sass-converter (1.5.0)
+      sass (~> 3.4)
+    jekyll-seo-tag (2.3.0)
+      jekyll (~> 3.3)
+    jekyll-sitemap (1.0.0)
+      jekyll (~> 3.3)
+    jekyll-swiss (0.4.0)
+    jekyll-theme-architect (0.1.0)
+      jekyll (~> 3.5)
+      jekyll-seo-tag (~> 2.0)
+    jekyll-theme-cayman (0.1.0)
+      jekyll (~> 3.5)
+      jekyll-seo-tag (~> 2.0)
+    jekyll-theme-dinky (0.1.0)
+      jekyll (~> 3.5)
+      jekyll-seo-tag (~> 2.0)
+    jekyll-theme-hacker (0.1.0)
+      jekyll (~> 3.5)
+      jekyll-seo-tag (~> 2.0)
+    jekyll-theme-leap-day (0.1.0)
+      jekyll (~> 3.5)
+      jekyll-seo-tag (~> 2.0)
+    jekyll-theme-merlot (0.1.0)
+      jekyll (~> 3.5)
+      jekyll-seo-tag (~> 2.0)
+    jekyll-theme-midnight (0.1.0)
+      jekyll (~> 3.5)
+      jekyll-seo-tag (~> 2.0)
+    jekyll-theme-minimal (0.1.0)
+      jekyll (~> 3.5)
+      jekyll-seo-tag (~> 2.0)
+    jekyll-theme-modernist (0.1.0)
+      jekyll (~> 3.5)
+      jekyll-seo-tag (~> 2.0)
+    jekyll-theme-primer (0.5.2)
+      jekyll (~> 3.5)
+      jekyll-github-metadata (~> 2.9)
+      jekyll-seo-tag (~> 2.2)
+    jekyll-theme-slate (0.1.0)
+      jekyll (~> 3.5)
+      jekyll-seo-tag (~> 2.0)
+    jekyll-theme-tactile (0.1.0)
+      jekyll (~> 3.5)
+      jekyll-seo-tag (~> 2.0)
+    jekyll-theme-time-machine (0.1.0)
+      jekyll (~> 3.5)
+      jekyll-seo-tag (~> 2.0)
+    jekyll-titles-from-headings (0.4.0)
+      jekyll (~> 3.3)
+    jekyll-watch (1.5.0)
+      listen (~> 3.0, < 3.1)
+    jemoji (0.8.0)
+      activesupport (~> 4.0)
+      gemoji (~> 3.0)
+      html-pipeline (~> 2.2)
+      jekyll (>= 3.0)
+    kramdown (1.13.2)
+    liquid (4.0.0)
+    listen (3.0.6)
       rb-fsevent (>= 0.9.3)
-      rb-inotify (>= 0.9)
-    mercenary (0.3.5)
-    parslet (1.5.0)
-      blankslate (~> 2.0)
-    posix-spawn (0.3.9)
-    pygments.rb (0.6.0)
-      posix-spawn (~> 0.3.6)
-      yajl-ruby (~> 1.1.0)
-    rb-fsevent (0.9.4)
-    rb-inotify (0.9.5)
-      ffi (>= 0.5.0)
-    redcarpet (3.2.2)
+      rb-inotify (>= 0.9.7)
+    mercenary (0.3.6)
+    mini_portile2 (2.2.0)
+    minima (2.1.1)
+      jekyll (~> 3.3)
+    minitest (5.10.3)
+    multipart-post (2.0.0)
+    net-dns (0.8.0)
+    nokogiri (1.8.0)
+      mini_portile2 (~> 2.2.0)
+    octokit (4.7.0)
+      sawyer (~> 0.8.0, >= 0.5.3)
+    pathutil (0.14.0)
+      forwardable-extended (~> 2.6)
+    public_suffix (2.0.5)
+    rb-fsevent (0.10.2)
+    rb-inotify (0.9.10)
+      ffi (>= 0.5.0, < 2)
+    rouge (1.11.1)
     safe_yaml (1.0.4)
-    sass (3.4.9)
-    timers (4.0.1)
-      hitimes
-    toml (0.1.2)
-      parslet (~> 1.5.0)
-    yajl-ruby (1.1.0)
+    sass (3.5.1)
+      sass-listen (~> 4.0.0)
+    sass-listen (4.0.0)
+      rb-fsevent (~> 0.9, >= 0.9.4)
+      rb-inotify (~> 0.9, >= 0.9.7)
+    sawyer (0.8.1)
+      addressable (>= 2.3.5, < 2.6)
+      faraday (~> 0.8, < 1.0)
+    terminal-table (1.8.0)
+      unicode-display_width (~> 1.1, >= 1.1.1)
+    thread_safe (0.3.6)
+    typhoeus (0.8.0)
+      ethon (>= 0.8.0)
+    tzinfo (1.2.3)
+      thread_safe (~> 0.1)
+    unicode-display_width (1.3.0)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
-  albino
-  iconv
-  jekyll (~> 2.5.3)
-  jekyll-sitemap
+  github-pages
+
+BUNDLED WITH
+   1.15.4

_config.yml

@@ -1,10 +1,10 @@
 source:      .
 destination: ./_site
-plugins:     ./_plugins
+plugins_dir:     ./_plugins
 exclude: [bin, CNAME, Gemfile, Gemfile.lock, README.md]
 permalink: /blog/:year/:month/:day/:title.html
 markdown: kramdown
 redcarpet:
   extensions: ["no_intra_emphasis", "fenced_code_blocks", "autolink", "tables", "with_toc_data"]
-gems:
+plugins:
 - jekyll-sitemap

bin/bundler

@@ -1,16 +1,17 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
 #
 # This file was generated by Bundler.
 #
 # The application 'bundler' is installed as part of a gem, and
 # this file is here to facilitate running it.
 #
 
-require 'pathname'
-ENV['BUNDLE_GEMFILE'] ||= File.expand_path("../../Gemfile",
+require "pathname"
+ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../../Gemfile",
   Pathname.new(__FILE__).realpath)
 
-require 'rubygems'
-require 'bundler/setup'
+require "rubygems"
+require "bundler/setup"
 
-load Gem.bin_path('bundler', 'bundler')
+load Gem.bin_path("bundler", "bundler")

bin/gemoji

@@ -0,0 +1,17 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+#
+# This file was generated by Bundler.
+#
+# The application 'gemoji' is installed as part of a gem, and
+# this file is here to facilitate running it.
+#
+
+require "pathname"
+ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../../Gemfile",
+  Pathname.new(__FILE__).realpath)
+
+require "rubygems"
+require "bundler/setup"
+
+load Gem.bin_path("gemoji", "gemoji")

bin/github-pages

@@ -0,0 +1,17 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+#
+# This file was generated by Bundler.
+#
+# The application 'github-pages' is installed as part of a gem, and
+# this file is here to facilitate running it.
+#
+
+require "pathname"
+ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../../Gemfile",
+  Pathname.new(__FILE__).realpath)
+
+require "rubygems"
+require "bundler/setup"
+
+load Gem.bin_path("github-pages", "github-pages")

bin/jekyll

@@ -1,16 +1,17 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
 #
 # This file was generated by Bundler.
 #
 # The application 'jekyll' is installed as part of a gem, and
 # this file is here to facilitate running it.
 #
 
-require 'pathname'
-ENV['BUNDLE_GEMFILE'] ||= File.expand_path("../../Gemfile",
+require "pathname"
+ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../../Gemfile",
   Pathname.new(__FILE__).realpath)
 
-require 'rubygems'
-require 'bundler/setup'
+require "rubygems"
+require "bundler/setup"
 
-load Gem.bin_path('jekyll', 'jekyll')
+load Gem.bin_path("jekyll", "jekyll")