Merge pull request #225 from kddejong/Release/v0.4.0

Append release documentation

Author: Chuck Meyer

CHANGELOG.md

@@ -13,9 +13,12 @@
 ###### Features
 - Update CloudFormation specs to July 16th, 2018
 - Support comma lists for regions, append rules, and ignore check parameters
+- Added documentation explaining Resource Specification based rules
 ###### Fixes
 - Fix a bunch of typos across many different rules
 - Support DeepCopy with Template and custom String classes used for marking up templates
+- Fix Rule E3002 to support CommaDelimitedList when looking for List Parameters
+- Fix core engine to check that something is a Dict instead of assuming it is
 
 ### 0.3.5
 ###### Features