File Security Redux.

Hopefully, this will fix the world-writable-files problem with Rails, once and for all.

config/environment.rb

@@ -21,6 +21,7 @@ Rails::Initializer.run do |config|
   config.active_record.schema_format = :ruby
 
   config.load_paths << "#{RAILS_ROOT}/vendor/plugins/sqlite3-ruby"
+  File.umask(0026)
 end
 
 # Instiki-specific configuration below