Make Wiki#page case insensitive.

lib/gollum/frontend/app.rb

@@ -62,7 +62,7 @@ module Precious
     end
 
     post '/create/:name' do
-      name = params[:name]
+      name = params[:page]
       wiki = Gollum::Wiki.new($path)
 
       format = params[:format].intern

lib/gollum/markup.rb

@@ -212,8 +212,14 @@ module Gollum
       if name =~ %r{^https?://} && parts[1].nil?
         %{<a href="#{name}">#{name}</a>}
       else
-        link  = ::File.join(@wiki.base_path, cname)
+        if page = @wiki.page(cname)
-        presence = @wiki.page(cname) ? "present" : "absent"
+          pname = page.name.split('.')[0..-2].join('.')
+          link = ::File.join(@wiki.base_path, Page.cname(pname))
+          presence = "present"
+        else
+          link = ::File.join(@wiki.base_path, cname)
+          presence = "absent"
+        end
         %{<a class="internal #{presence}" href="#{link}">#{name}</a>}
       end
     end

lib/gollum/page.rb

@@ -271,7 +271,7 @@ module Gollum
     # Returns a Boolean.
     def page_match(name, filename)
       if match = self.class.valid_filename?(filename)
-        Page.cname(name) == Page.cname(match)
+        Page.cname(name).downcase == Page.cname(match).downcase
       else
         false
       end

test/test_page.rb

@@ -21,6 +21,10 @@ context "Page" do
     assert_equal @wiki.repo.commits.first.id, page.version.id
   end
 
+  test "get existing page case insensitive" do
+    assert_equal @wiki.page('Bilbo Baggins').path, @wiki.page('bilbo baggins').path
+  end
+
   test "get nested page" do
     page = @wiki.page('Eye Of Sauron')
     assert_equal 'Mordor/Eye-Of-Sauron.md', page.path