added changelog

Author: alex

changelog.md

@@ -0,0 +1,32 @@
+#jdbc Component Change log 
+
+
+## [Unrelased]
+###added 
+###change 
+###deprecated 
+###removed 
+###fixed 
+###security 
+
+## [V2.0] 2018-09-19 elastic.io 
+
+###added 
+
+triggers 
+- SELECT 
+- GET ROWS POLLING
+
+actions 
+- SELECT 
+- LOOKUP BY PRIMARY KEY
+- UPSERT BY PRIMARY KEY (for migration)
+- DELETE BY PRIMARY KEY
+
+###removed 
+actions 
+- CreateOrUpdateRecord
+###fixed 
+- fix issue in postgresql - getDate(null)
+- fix null values as input for select
+