Removed (temporarily, I hope) the "export web to TeX" and PDF-output features. They were slow and didn't work right.

app/views/wiki/page.rhtml

@@ -41,9 +41,11 @@
     | 
     <%= link_to 'TeX', {:web => @web.address, :action => 'tex', :id => @page.name}, 
             {:id => 'view_tex'} %>
+<!-- Doesn't really work right:
     | 
     <%= link_to 'PDF', {:web => @web.address, :action => 'pdf', :id => @page.name},
             {:id => 'view_pdf'} %>
+-->
   <% end %>
   </small>