Removed @html_title assignments in controllers.

Views can now set the header title using set_htmh_title(title) method.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@715 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/views/common/403.rhtml

@@ -2,3 +2,5 @@
 
 <p><%= l(:notice_not_authorized) %></p>
 <p><a href="javascript:history.back()">Back</a></p>
+
+<% set_html_title '403' %>

app/views/common/404.rhtml

@@ -2,3 +2,5 @@
 
 <p><%= l(:notice_file_not_found) %></p>
 <p><a href="javascript:history.back()">Back</a></p>
+
+<% set_html_title '404' %>