Make retrieval of snippets optional in search queries (fixes #58)

Change-Id: I8bb538633e9eff89bed6343f716c59305262c6d1
diff --git a/Changes b/Changes
index 94c2480..7ce2b5a 100644
--- a/Changes
+++ b/Changes
@@ -1,8 +1,10 @@
-0.58.6 2019-05-28
+0.58.6 2019-06-04
     - [bugfix] Updated cache loading (fixed #55) (diewald, margaretha)
     - [bugfix] Introduce left match cutting so that
       in matchinfo with expandToContext cutting won't
       remove the actual match (diewald; reported by CoRoLa)
+    - [feature] Make retrieval of primarydata optional (fixes #58)
+      (diewald)
 
 0.58.5 2019-03-18
     - [bugfix] Fix bug where duplicate keys occured in