Host documentation at gofreerange.com/recap/docs

It's quite simple to upload the files to our server; in the virtual host
for Apache, I've added the following configuration:

    AliasMatch ^/recap/docs(.*)$ /home/freerange/docs/recap$1
    <Directory "/home/freerange/docs/recap">
      PassengerEnabled off
      AllowOverride all
      allow from all
      Options +Indexes
    </Directory>

Since with this change we wouldn't use github to host the docs, we don't
need the documentation in git, so I've also removed the files and
ignored the `doc` directory. If this is acceptable, we can also remove
the gh-pages branch.

.gitignore

@@ -4,4 +4,5 @@
 Gemfile.lock
 pkg/*
 /test-vm/share/*
-capistrano.log
+capistrano.log
+doc

Rakefile

@@ -22,11 +22,7 @@ end
 
 desc 'publish docs'
 task :publish do
-  sha = `git ls-tree -d HEAD doc | awk '{print $3}'`.strip
-  commit = `echo "Publishing docs from master branch" | git commit-tree #{sha} -p refs/heads/gh-pages`.strip
-  `git update-ref refs/heads/gh-pages #{commit}`
-  puts "The gh-pages branch now points to the latest version of the docs."
-  puts "All that remains is for you to push gh-pages to github."
+  `scp -r doc/* gofreerange.com:/home/freerange/docs/recap`
 end
 
 RSpec::Core::RakeTask.new(:spec) do |t|