Fix saving translate records with saveAll()

Also fixes issues saving translated data with validation
disabled.  By enabling data backup in beforeSave() and beforeValidate()
the existing behavior is preserved, and the current issue is fixed.

Fixes #2857

Conflicts:

	cake/libs/model/behaviors/translate.php
	cake/tests/cases/libs/model/behaviors/translate.test.php
	cake/tests/fixtures/translated_item_fixture.php
	lib/Cake/Test/Case/Model/models.php

cake/libs/model/behaviors/translate.php

@@ -330,8 +330,35 @@ function afterFind(&$model, $results, $primary) {
  * @access public
  */
 	function beforeValidate(&$model) {
+		unset($this->runtime[$model->alias]['beforeSave']);
+		$this->_setRuntimeData($model);
+		return true;
+	}
+
+/**
+ * beforeSave callback.
+ *
+ * @param Model $model Model save was called on.
+ * @return boolean true.
+ */
+	function beforeSave(Model $model) {
+		$this->_setRuntimeData($model);
+		return true;
+	}
+
+/**
+ * Sets the runtime data.
+ *
+ * Used from beforeValidate() and beforeSave() for compatibility issues,
+ * and to allow translations to be persisted even when validation
+ * is disabled.
+ *
+ * @param Model $model
+ * @return void
+ */
+	function _setRuntimeData(Model $model) {
 		$locale = $this->_getLocale($model);
-		if (empty($locale)) {
+		if (empty($locale) || isset($this->runtime[$model->alias]['beforeSave'])) {
 			return true;
 		}
 		$fields = array_merge($this->settings[$model->alias], $this->runtime[$model->alias]['fields']);
@@ -353,7 +380,6 @@ function beforeValidate(&$model) {
 			}
 		}
 		$this->runtime[$model->alias]['beforeSave'] = $tempData;
-		return true;
 	}
 
 /**