Merge pull request #11 from noahheck/SubstringReplacement

Update changelog

CHANGELOG.md

@@ -1,35 +1,42 @@
-##Change Log
+## Change Log
 
-###2.1.5 (2015-05-13)
+### 2.2.0 (2016-11-08)
 
-####Added
+#### Added
+
+- Updated parameter interpolation process for more reliable / proper behavior
+- Handle null values
+
+### 2.1.5 (2016-05-13)
+
+#### Added
 
 - Test for successful execution of database query with named placeholders
 - Updated README
 
-####Fixed
+#### Fixed
 
 - Remove un-needed escape sequences in regular expression patterns
 
-###2.1.4 (2015-10-25)
+### 2.1.4 (2015-10-25)
 
 ####Added
 
 - Nothing
 
-####Fixed
+#### Fixed
 
 - Remove duplication of code for input and bound parameters
 - Identified and fixed documentation errors
 
-###2.1.3 (2015-10-24)
+### 2.1.3 (2015-10-24)
 
 ####Added
 
 - Full PHPUnit Test Suite
 - Reorganize code to more suitable project structure
 
-###2.1.2 (2015-07-19)
+### 2.1.2 (2015-07-19)
 
 ####Added