Bump version to 4.3.28 [#140505361]

Author: sesmith177

Diff for: CHANGELOG

@@ -1,3 +1,24 @@
+v4.3.28 Feb 27, 2017
+=====================
+
+* Add geoip PECL extension 
+  (https://www.pivotaltracker.com/story/show/138843171)
+
+* Ensure buildpack does not warn about extensions that are compiled into PHP 
+  (https://www.pivotaltracker.com/story/show/138757115)
+
+* Add nginx 1.11.10, remove nginx 1.11.9
+  (https://www.pivotaltracker.com/story/show/139833155)
+
+* Add PHP 7.0.16, remove PHP 7.0.14
+  (https://www.pivotaltracker.com/story/show/139822511)
+
+* Add PHP 7.1.2, remove PHP 7.1.0
+  (https://www.pivotaltracker.com/story/show/139859257)
+
+* Remove PHP 5.5.x version line
+  (https://www.pivotaltracker.com/story/show/137306075)
+
 v4.3.27 Feb 09, 2017
 =====================
 

Diff for: VERSION

@@ -1 +1 @@
-4.3.27
+4.3.28