Prepared for 1.12.19 release

- Updated README: set version, date, and changelog notes.
- Updated `Zend_Version::VERSION` constant.

README.md

@@ -18,12 +18,18 @@ Master: [![Build Status](https://api.travis-ci.org/zendframework/zf1.png?branch=
 RELEASE INFORMATION
 ===================
 
-Zend Framework 1.12.19dev Release.
-Released on MMM DD, YYYY.
+Zend Framework 1.12.19 Release.
+Released on July 13, 2016.
 
 IMPORTANT FIXES FOR 1.12.19
 ---------------------------
 
+This release contains security fixes:
+
+- **ZF2016-02**: The implementation of `ORDER BY` and `GROUP BY` in
+  `Zend_Db_Select` contained potential SQL injection vulnerabilities,
+  and have been patched.
+
 See http://framework.zend.com/changelog for full details.
 
 NEW FEATURES

library/Zend/Version.php

@@ -32,7 +32,7 @@ final class Zend_Version
     /**
      * Zend Framework version identification - see compareVersion()
      */
-    const VERSION = '1.12.19dev';
+    const VERSION = '1.12.19';
 
     /**
      * The latest stable version Zend Framework available