Extracted file saving into a separate function, fixed DMC compilation (set_value_buffer cast error)
Extracted file saving into a separate function, fixed DMC compilation (set_value_buffer cast error)

git-svn-id: febc13fe83507aab7d46ca3748413bb6c67ab8eb@880 99668b35-9821-0410-8761-19e4c4f06640

zeux/pugixml,zeux/pugixml,zeux/pugixml,zeux/pugixml