Switch to transifex for translations

All strings, urls and anchors are now in a single yml files for each language
Translated html pages are generated by a jekyll plugin based on unified templates
Add a new sitemap generator plugin for the new translation structure
Update french translations

_plugins/sitemap.rb

@@ -0,0 +1,73 @@
+module Jekyll
+
+  class SitemapFile < StaticFile
+    def write(dest)
+      # do nothing
+    end
+  end
+
+  class SitemapGenerator < Generator
+    def generate(site)
+      
+      #Load translations
+      locs = {}
+      Dir.foreach('_translations') do |file|
+        next if file == '.' or file == '..'
+        lang=file.split('.')[0]
+        locs[lang] = YAML.load_file('_translations/'+file)[lang]
+      end
+      #Create destination directory if does not exists
+      if !File.directory?(site.dest)
+        Dir.mkdir(site.dest)
+      end
+      File.open(File.join(site.dest, 'sitemap.xml'), 'w+') do |sitemap|
+        #Open sitemap
+        sitemap.puts '<?xml version="1.0" encoding="UTF-8"?>'
+        sitemap.puts '<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"'
+        sitemap.puts '	xmlns:xhtml="http://www.w3.org/1999/xhtml">'
+        #Add translated pages with their alternative in each languages
+        locs['en']['url'].each do |id,value|
+          locs.each do |lang,value|
+            next if locs[lang]['url'][id].nil?
+            sitemap.puts '<url>'
+            sitemap.puts '  <loc>http://bitcoin.org/'+lang+'/'+locs[lang]['url'][id]+'</loc>'
+            locs.each do |altlang,value|
+              next if locs[altlang]['url'][id].nil? or altlang == lang
+              sitemap.puts '  <xhtml:link'
+              sitemap.puts '    rel="alternate"'
+              sitemap.puts '    hreflang="'+altlang+'"'
+              sitemap.puts '    href="http://bitcoin.org/'+altlang+'/'+locs[altlang]['url'][id]+'" />'
+            end
+            sitemap.puts '</url>'
+          end
+        end
+	#Add static non-translated pages
+        Dir.foreach('.') do |file1|
+          if /^[a-z]{2}(_[A-Z]{2})?$/.match(file1) and File.directory?(file1)
+            Dir.foreach(file1) do |file2|
+              next if !/\.html$/.match(file2)
+              sitemap.puts '<url>'
+              sitemap.puts '  <loc>http://bitcoin.org/'+file1+'/'+file2+'</loc>'
+              sitemap.puts '</url>'
+            end
+          end
+          next if !/\.html$/.match(file1)
+          sitemap.puts '<url>'
+          sitemap.puts '  <loc>http://bitcoin.org/'+file1+'</loc>'
+          sitemap.puts '</url>'
+        end
+        #Add posts
+        site.posts.each do |post|
+          sitemap.puts '<url>'
+          sitemap.puts '  <loc>http://bitcoin.org'+post.url+'</loc>'
+          sitemap.puts '</url>'
+        end
+        #Close sitemap
+        sitemap.puts '</urlset>'
+      end
+      site.static_files << SitemapFile.new(site, site.source, '', 'sitemap.xml')
+
+    end
+  end
+
+end