Use kramdown instead of redcarpet

This was happening transparently at GitHub Pages anyway.

.ruby-version

@@ -1 +1 @@
-2.4.2
+2.5.1

Gemfile

@@ -2,7 +2,6 @@ source 'https://rubygems.org'
 gem 'github-pages'
 gem 'rake'
 gem 'rqrcode_png'
-gem 'redcarpet'
 
 group :test do
   gem 'html-proofer'

Gemfile.lock

@@ -228,7 +228,6 @@ GEM
     rb-fsevent (0.10.3)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
-    redcarpet (3.4.0)
     rouge (2.2.1)
     rqrcode (0.10.1)
       chunky_png (~> 1.0)
@@ -265,7 +264,6 @@ DEPENDENCIES
   github-pages
   html-proofer
   rake
-  redcarpet
   rqrcode_png
 
 BUNDLED WITH

Rakefile

@@ -9,7 +9,7 @@ end
 
 desc 'Build site with Jekyll'
 task :build => :clean do
-  jekyll('build')
+  jekyll('build --profile')
 end
 
 desc 'Check site with html-proofer'

_config.yml

@@ -1,8 +1,12 @@
 # To prevent Jekyll from reading bundles on Travis CI
 exclude: [vendor]
-markdown: redcarpet
-highlighter: pygments
-repository: https://github.com/connectbot/connectbot/
+highlighter: rouge
+markdown: kramdown
+kramdown:
+  input: GFM
+  auto_ids: true
+  syntax_highlighter: rouge
+repository: https://github.com/connectbot/connectbot.github.io.git
 permalink: pretty
 plugins:
   - jekyll-sitemap