Added sqlite only note

lib/sequelize.js

@@ -79,7 +79,7 @@ var url = require('url')
  * @param {Integer}  [options.pool.maxIdleTime] The maximum time, in milliseconds, that a connection can be idle before being released
  * @param {Function} [options.pool.validateConnection] A function that validates a connection. Called with client. The default function checks that client is an object, and that its state is not disconnected
  * @param {Boolean}  [options.quoteIdentifiers=true] Set to `false` to make table names and attributes case-insensitive on Postgres and skip double quoting of them.
- * @param {String}   [options.transactionType='DEFERRED'] Set the default transaction type. See `Sequelize.Transaction.TYPES` for possible options.
+ * @param {String}   [options.transactionType='DEFERRED'] Set the default transaction type. See `Sequelize.Transaction.TYPES` for possible options. Sqlite only.
  * @param {String}   [options.isolationLevel='REPEATABLE_READ'] Set the default transaction isolation level. See `Sequelize.Transaction.ISOLATION_LEVELS` for possible options.
  * @param {Boolean}  [options.typeValidation=false] Run built in type validators on insert and update, e.g. validate that arguments passed to integer fields are integer-like
 */
@@ -1202,7 +1202,7 @@ Sequelize.where = Sequelize.condition = Sequelize.prototype.condition = Sequeliz
 
  * @param {Object}   [options={}]
  * @param {Boolean}  [options.autocommit=true]
- * @param {String}   [options.type='DEFERRED'] See `Sequelize.Transaction.TYPES` for possible options
+ * @param {String}   [options.type='DEFERRED'] See `Sequelize.Transaction.TYPES` for possible options. Sqlite only.
  * @param {String}   [options.isolationLevel='REPEATABLE_READ'] See `Sequelize.Transaction.ISOLATION_LEVELS` for possible options
  * @param {Function} [options.logging=false] A function that gets executed while running the query to log the sql.
  * @return {Promise}

lib/transaction.js

@@ -43,6 +43,7 @@ var Transaction = module.exports = function(sequelize, options) {
 /**
  * Types can be set per-transaction by passing `options.type` to `sequelize.transaction`.
  * Default to `DEFERRED` but you can override the default type by passing `options.transactionType` in `new Sequelize`.
+ * Sqlite only.
  *
  * The possible types to use when starting a transaction:
  *