Updatet the CHANGELOG.md [ci skip]

CHANGELOG.md

@@ -1,4 +1,4 @@
-# [3.2.1](https://github.com/phalcon/cphalcon/releases/tag/v3.2.1) (2017-XX-XX)
+# [3.2.1](https://github.com/phalcon/cphalcon/releases/tag/v3.2.1) (2017-07-10)
 - Added `Phalcon\Db\Dialect\Mysql::getForeignKeyChecks` to generate a SQL to check the foreign key settings [#2604](https://github.com/phalcon/cphalcon/issues/2604), [phalcon/phalcon-devtools#556](https://github.com/phalcon/phalcon-devtools/issues/556)
 - Fixed inconsistent behaviour of `Phalcon\Config::merge` across minor version of PHP7 [#12779](https://github.com/phalcon/cphalcon/issues/12779)
 - Fixed visibility of `Phalcon\Mvc\Model\Query\Builder` methods: `_conditionNotIn`, `_conditionIn`, `_conditionNotBetween` and `_conditionBetween` to allow 3rd party libraries extend it