[FLINK-13727][docs] update jekyll to the final version 4.0.0

docs/Gemfile

@@ -20,15 +20,15 @@ source 'https://rubygems.org'
 
 ruby '>= 2.4.0'
 
-gem 'jekyll', '4.0.0.pre.beta1'
-gem 'addressable', '2.6.0'
+gem 'jekyll', '4.0.0'
+gem 'addressable', '2.7.0'
 gem 'octokit', '4.14.0'
 gem 'therubyracer', '0.12.3'
 gem 'json', '2.2.0'
 gem 'jekyll-multiple-languages', '2.0.3'
 gem 'jekyll-paginate', '1.1.0'
 gem 'liquid-c', '4.0.0' # speed-up site generation
-gem 'sassc', '2.0.1' # speed-up site generation
+gem 'sassc', '2.2.1' # speed-up site generation
 
 # group :jekyll_plugins do
 # gem 'hawkins'

docs/Gemfile.lock

@@ -1,27 +1,27 @@
 GEM
  remote: https://rubygems.org/
  specs:
- addressable (2.6.0)
- public_suffix (>= 2.0.2, < 4.0)
+ addressable (2.7.0)
+ public_suffix (>= 2.0.2, < 5.0)
  colorator (1.1.0)
  concurrent-ruby (1.1.5)
  em-websocket (0.5.1)
  eventmachine (>= 0.12.9)
  http_parser.rb (~> 0.6.0)
  eventmachine (1.2.7)
- faraday (0.15.4)
+ faraday (0.17.0)
  multipart-post (>= 1.2, < 3)
- ffi (1.11.1)
+ ffi (1.11.2)
  forwardable-extended (2.6.0)
  http_parser.rb (0.6.0)
- i18n (1.6.0)
+ i18n (1.7.0)
  concurrent-ruby (~> 1.0)
- jekyll (4.0.0.pre.beta1)
+ jekyll (4.0.0)
  addressable (~> 2.4)
  colorator (~> 1.0)
  em-websocket (~> 0.5)
  i18n (>= 0.9.5, < 2)
- jekyll-sass-converter (~> 1.0)
+ jekyll-sass-converter (~> 2.0)
  jekyll-watch (~> 2.0)
  kramdown (~> 2.1)
  kramdown-parser-gfm (~> 1.0)
@@ -30,10 +30,11 @@ GEM
  pathutil (~> 0.9)
  rouge (~> 3.0)
  safe_yaml (~> 1.0)
+ terminal-table (~> 1.8)
  jekyll-multiple-languages (2.0.3)
  jekyll-paginate (1.1.0)
- jekyll-sass-converter (1.5.2)
- sass (~> 3.4)
+ jekyll-sass-converter (2.0.1)
+ sassc (> 2.0.1, < 3.0)
  jekyll-watch (2.2.1)
  listen (~> 3.0)
  json (2.2.0)
@@ -44,52 +45,46 @@ GEM
  liquid (4.0.3)
  liquid-c (4.0.0)
  liquid (>= 3.0.0)
- listen (3.1.5)
- rb-fsevent (~> 0.9, >= 0.9.4)
- rb-inotify (~> 0.9, >= 0.9.7)
- ruby_dep (~> 1.2)
+ listen (3.2.0)
+ rb-fsevent (~> 0.10, >= 0.10.3)
+ rb-inotify (~> 0.9, >= 0.9.10)
  mercenary (0.3.6)
  multipart-post (2.1.1)
  octokit (4.14.0)
  sawyer (~> 0.8.0, >= 0.5.3)
  pathutil (0.16.2)
  forwardable-extended (~> 2.6)
- public_suffix (3.1.1)
- rake (12.3.3)
+ public_suffix (4.0.1)
  rb-fsevent (0.10.3)
  rb-inotify (0.10.0)
  ffi (~> 1.0)
  ref (2.0.0)
- rouge (3.8.0)
- ruby_dep (1.5.0)
+ rouge (3.13.0)
  safe_yaml (1.0.5)
- sass (3.7.4)
- sass-listen (~> 4.0.0)
- sass-listen (4.0.0)
- rb-fsevent (~> 0.9, >= 0.9.4)
- rb-inotify (~> 0.9, >= 0.9.7)
- sassc (2.0.1)
+ sassc (2.2.1)
  ffi (~> 1.9)
- rake
  sawyer (0.8.2)
  addressable (>= 2.3.5)
  faraday (> 0.8, < 2.0)
+ terminal-table (1.8.0)
+ unicode-display_width (~> 1.1, >= 1.1.1)
  therubyracer (0.12.3)
  libv8 (~> 3.16.14.15)
  ref
+ unicode-display_width (1.6.0)
 
 PLATFORMS
  ruby
 
 DEPENDENCIES
- addressable (= 2.6.0)
- jekyll (= 4.0.0.pre.beta1)
+ addressable (= 2.7.0)
+ jekyll (= 4.0.0)
  jekyll-multiple-languages (= 2.0.3)
  jekyll-paginate (= 1.1.0)
  json (= 2.2.0)
  liquid-c (= 4.0.0)
  octokit (= 4.14.0)
- sassc (= 2.0.1)
+ sassc (= 2.2.1)
  therubyracer (= 0.12.3)
 
 RUBY VERSION