Update Elixir documentation (1.2.0)

lib/docs/filters/elixir/clean_html.rb

@@ -2,7 +2,7 @@ module Docs
   class Elixir
     class CleanHtmlFilter < Filter
       def call
-        at_css('footer', '.view-source').remove
+        css('footer', '.view-source', 'h1 .visible-xs').remove
 
         css('section section.docstring h2').each do |node|
           node.name = 'h4'

lib/docs/filters/elixir/entries.rb

@@ -42,7 +42,7 @@ module Docs
       end
 
       def include_default_entry?
-        !slug.end_with?('extra-api-reference')
+        !slug.end_with?('api-reference')
       end
     end
   end

lib/docs/scrapers/elixir.rb

@@ -2,9 +2,9 @@ module Docs
   class Elixir < UrlScraper
     self.name = 'Elixir'
     self.type = 'elixir'
-    self.version = '1.1.1'
+    self.version = '1.2.0'
     self.base_url = 'http://elixir-lang.org/docs/stable/'
-    self.root_path = 'elixir/extra-api-reference.html'
+    self.root_path = 'elixir/api-reference.html'
     self.initial_paths = %w(
       eex/EEx.html
       ex_unit/ExUnit.html