Workaround bug in bundler where the wrong version of github-pages

is fetched.

This has been reported at

github/pages-gem#351
rubygems/bundler#5154

This unfortunately means that 999a49a
was wrong because the wrong gem versions were fetched which broke the
build. So the `Gemfile.lock` had to be regenerated.

Gemfile

@@ -1,2 +1,8 @@
 source 'https://rubygems.org'
-gem 'github-pages', group: :jekyll_plugins
+# FIXME: '>=104' is a workaround for a bug in
+# bundler where the wrong version of `github-pages`
+# is fetched.
+# See
+# https://github.com/github/pages-gem/issues/351
+# https://github.com/bundler/bundler/issues/5154
+gem 'github-pages', '>=104', group: :jekyll_plugins

Gemfile.lock

@@ -1,119 +1,126 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    RedCloth (4.2.9)
-    activesupport (5.0.0.1)
-      concurrent-ruby (~> 1.0, >= 1.0.2)
+    activesupport (4.2.7)
       i18n (~> 0.7)
+      json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
+      thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
     addressable (2.4.0)
-    blankslate (2.1.2.4)
-    classifier-reborn (2.0.4)
-      fast-stemmer (~> 1.0)
     coffee-script (2.4.1)
       coffee-script-source
       execjs
     coffee-script-source (1.10.0)
-    colorator (0.1)
-    concurrent-ruby (1.0.2)
+    colorator (1.1.0)
     ethon (0.9.1)
       ffi (>= 1.3.0)
     execjs (2.7.0)
     faraday (0.9.2)
       multipart-post (>= 1.2, < 3)
-    fast-stemmer (1.0.2)
     ffi (1.9.14)
+    forwardable-extended (2.6.0)
     gemoji (2.1.0)
-    github-pages (39)
-      RedCloth (= 4.2.9)
-      github-pages-health-check (~> 0.2)
-      jekyll (= 2.4.0)
+    github-pages (104)
+      activesupport (= 4.2.7)
+      github-pages-health-check (= 1.2.0)
+      jekyll (= 3.3.0)
+      jekyll-avatar (= 0.4.2)
       jekyll-coffeescript (= 1.0.1)
-      jekyll-feed (= 0.3.1)
-      jekyll-mentions (= 0.2.1)
-      jekyll-redirect-from (= 0.8.0)
+      jekyll-feed (= 0.8.0)
+      jekyll-gist (= 1.4.0)
+      jekyll-github-metadata (= 2.2.0)
+      jekyll-mentions (= 1.2.0)
+      jekyll-paginate (= 1.1.0)
+      jekyll-redirect-from (= 0.11.0)
       jekyll-sass-converter (= 1.3.0)
-      jekyll-sitemap (= 0.8.1)
-      jemoji (= 0.5.0)
-      kramdown (= 1.5.0)
-      liquid (= 2.6.2)
-      maruku (= 0.7.0)
+      jekyll-seo-tag (= 2.1.0)
+      jekyll-sitemap (= 0.12.0)
+      jekyll-swiss (= 0.4.0)
+      jemoji (= 0.7.0)
+      kramdown (= 1.11.1)
+      liquid (= 3.0.6)
+      listen (= 3.0.6)
       mercenary (~> 0.3)
-      pygments.rb (= 0.6.3)
-      rdiscount (= 2.1.7)
-      redcarpet (= 3.3.2)
+      minima (= 2.0.0)
+      rouge (= 1.11.1)
       terminal-table (~> 1.4)
-    github-pages-health-check (0.3.2)
-      net-dns (~> 0.6)
+    github-pages-health-check (1.2.0)
+      addressable (~> 2.3)
+      net-dns (~> 0.8)
+      octokit (~> 4.0)
       public_suffix (~> 1.4)
       typhoeus (~> 0.7)
-    html-pipeline (1.9.0)
+    html-pipeline (2.4.2)
       activesupport (>= 2)
-      nokogiri (~> 1.4)
+      nokogiri (>= 1.4)
     i18n (0.7.0)
-    jekyll (2.4.0)
-      classifier-reborn (~> 2.0)
-      colorator (~> 0.1)
-      jekyll-coffeescript (~> 1.0)
-      jekyll-gist (~> 1.0)
-      jekyll-paginate (~> 1.0)
+    jekyll (3.3.0)
+      addressable (~> 2.4)
+      colorator (~> 1.0)
       jekyll-sass-converter (~> 1.0)
       jekyll-watch (~> 1.1)
       kramdown (~> 1.3)
-      liquid (~> 2.6.1)
+      liquid (~> 3.0)
       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-feed (0.3.1)
+    jekyll-feed (0.8.0)
+      jekyll (~> 3.3)
     jekyll-gist (1.4.0)
       octokit (~> 4.2)
-    jekyll-mentions (0.2.1)
-      html-pipeline (~> 1.9.0)
-      jekyll (~> 2.0)
+    jekyll-github-metadata (2.2.0)
+      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-paginate (1.1.0)
-    jekyll-redirect-from (0.8.0)
+    jekyll-redirect-from (0.11.0)
       jekyll (>= 2.0)
     jekyll-sass-converter (1.3.0)
       sass (~> 3.2)
-    jekyll-sitemap (0.8.1)
+    jekyll-seo-tag (2.1.0)
+      jekyll (~> 3.3)
+    jekyll-sitemap (0.12.0)
+      jekyll (~> 3.3)
+    jekyll-swiss (0.4.0)
     jekyll-watch (1.5.0)
       listen (~> 3.0, < 3.1)
-    jemoji (0.5.0)
+    jemoji (0.7.0)
+      activesupport (~> 4.0)
       gemoji (~> 2.0)
-      html-pipeline (~> 1.9)
-      jekyll (>= 2.0)
-    kramdown (1.5.0)
-    liquid (2.6.2)
-    listen (3.0.8)
-      rb-fsevent (~> 0.9, >= 0.9.4)
-      rb-inotify (~> 0.9, >= 0.9.7)
-    maruku (0.7.0)
+      html-pipeline (~> 2.2)
+      jekyll (>= 3.0)
+    json (1.8.3)
+    kramdown (1.11.1)
+    liquid (3.0.6)
+    listen (3.0.6)
+      rb-fsevent (>= 0.9.3)
+      rb-inotify (>= 0.9.7)
     mercenary (0.3.6)
     mini_portile2 (2.1.0)
+    minima (2.0.0)
     minitest (5.9.1)
     multipart-post (2.0.0)
     net-dns (0.8.0)
     nokogiri (1.6.8.1)
       mini_portile2 (~> 2.1.0)
     octokit (4.6.0)
       sawyer (~> 0.8.0, >= 0.5.3)
-    parslet (1.5.0)
-      blankslate (~> 2.0)
-    posix-spawn (0.3.12)
+    pathutil (0.14.0)
+      forwardable-extended (~> 2.6)
     public_suffix (1.5.3)
-    pygments.rb (0.6.3)
-      posix-spawn (~> 0.3.6)
-      yajl-ruby (~> 1.2.0)
     rb-fsevent (0.9.8)
     rb-inotify (0.9.7)
       ffi (>= 0.5.0)
-    rdiscount (2.1.7)
-    redcarpet (3.3.2)
+    rouge (1.11.1)
     safe_yaml (1.0.4)
     sass (3.4.22)
     sawyer (0.8.0)
@@ -122,20 +129,17 @@ GEM
     terminal-table (1.7.3)
       unicode-display_width (~> 1.1.1)
     thread_safe (0.3.5)
-    toml (0.1.2)
-      parslet (~> 1.5.0)
     typhoeus (0.8.0)
       ethon (>= 0.8.0)
     tzinfo (1.2.2)
       thread_safe (~> 0.1)
     unicode-display_width (1.1.1)
-    yajl-ruby (1.2.1)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
-  github-pages
+  github-pages (>= 104)
 
 BUNDLED WITH
    1.13.6