translatable 5.x-1.2

Fixed fatal error due to missing Translatable module in menu.inc; updated Drupal core patches.
Changed table alias in db_rewrite_sql() to 'translatable'.
Fixed translation properties not stored for completely new nodes.
Fixed menu items of node translations are not found in the menu upon form submit (required by modules like pathauto); needs another core patch now.
Updated Drupal core patches.
Fixed cached menu is not reset after creating/editing a menu item translation.
Improved translatable_get_destination() to work with internal paths instead of aliases by default.
Further code clean-up.