add description for cvalue_id and note regarding chado 14

tripal_chado/api/tripal_chado.property.api.inc

@@ -302,6 +302,9 @@ function chado_insert_property($record, $property, $options = array()) {
  *     -cv_name: The name of the CV that contains the term.
  *     -value: The specific value for the property.
  *     -rank: The specific rank for the property.
+ *     -cvalue_id: The cvterm_id of the value for the property.
+ *      **note** cvalue_id is an anticipated column in the the next Chado release (1.4).  It is included here for early adopters.
+ *
  * @param $options
  *   An associative array containing the following keys:
  *     -insert_if_missing: A boolean indicating whether a record should be
@@ -544,6 +547,9 @@ function chado_delete_property($record, $property) {
  *     -cv_name: The name of the CV that contains the term.
  *     -value: The specific value for the property.
  *     -rank: The specific rank for the property.
+ *     -cvalue_id: The cvterm_id of the value for the property.
+ *      **note** cvalue_id is an anticipated column in the the next Chado release (1.4).  It is included here for early adopters.
+ * 
  * @param $options
  *   An array of options supported by chado_generate_var(). These keys
  *   are used for generating the cvterm objects returned by this function.