Optimize annotations to use term based Multiterm construction

Change-Id: I57d1cd0b8314db6447538ddf9e01eb6aa0d4cb9f
diff --git a/Changes b/Changes
index e2092a3..1f88c45 100644
--- a/Changes
+++ b/Changes
@@ -1,10 +1,11 @@
-0.41 2020-08-03
+0.41 2020-08-04
         - Added support for RWK annotations.
         - Improved DGD support.
         - Fixed bug in RWK support that broke on
           some KorAP-XML files.
         - Separate "real data" test suite from artificial
           tests to prepare for CPAN release.
+        - Optimizations and cleanup based on profiling.
 
 0.40 2020-03-03
         - Fixed XIP parser.