Fix editing of the sidebar with multi-byte characters.

lib/gollum/app.rb

@@ -141,8 +141,7 @@ module Precious
         else
           @page = page
           @page.version = wiki.repo.log(wiki.ref, @page.path).first
-          raw_data = page.raw_data
-          @content = raw_data.respond_to?(:force_encoding) ? raw_data.force_encoding('UTF-8') : raw_data
+          @content = page.text_data
           mustache :edit
         end
       else

lib/gollum/views/edit.rb

@@ -22,7 +22,7 @@ module Precious
       def header
         if @header.nil?
           if page = @page.header
-            @header = page.raw_data
+            @header = page.text_data
           else
             @header = false
           end
@@ -33,7 +33,7 @@ module Precious
       def footer
         if @footer.nil?
           if page = @page.footer
-            @footer = page.raw_data
+            @footer = page.text_data
           else
             @footer = false
           end
@@ -44,7 +44,7 @@ module Precious
       def sidebar
         if @sidebar.nil?
           if page = @page.sidebar
-            @sidebar = page.raw_data
+            @sidebar = page.text_data
           else
             @sidebar = false
           end