Added batch processing class for documents

Change-Id: I91ab289ffff525978fce3079a4dad71caddfe98a
diff --git a/Changes b/Changes
index cd3dbfe..ca1cec6 100644
--- a/Changes
+++ b/Changes
@@ -1,10 +1,11 @@
-0.18 2016-07-06
+0.18 2016-07-08
         - Added REI test.
 	- Added multiple archive support to korapxml2krill.
 	- Added support for prefix negation in korapxml2krill.
 	- Added support for Malt#Dependency.
 	- Improved test suite for caching and REI.
 	- Added support for MDParser annotation.
+	- Added batch processing class for documents.
 
 0.17 2016-03-22
         - Rewrite siglen to use slashes as separators.