sdk/java: update release date

Closes #3049

Author: Dan Croak <dan@statusok.com>
Date: Tue Mar 27 08:47:33 2018 -0700
upstream:76a2454601dab5280248e7efdfd50d9eb23c4398

Author: croaky

CHANGELOG.md

@@ -1,6 +1,6 @@
 # Sequence Java SDK changelog
 
-## 1.5.2 (201803??)
+## 1.5.2 (20180327)
 
 * The `assetTags`, `sourceAccountTags`, and `destinationAccountTags` properties
   on `ActionSum` have been deprecated; the new property is `snapshot`.
@@ -15,8 +15,8 @@
   `Key.PageIterable`, and `Transaction.PageIterable` have been deprecated;
   seee [Pagination](https://dashboard.seq.com/docs/pagination) for new
   interfaces.
-* `QueryBuilder` classes on `Action`, `Feed`, `Flavor`, `Key`, and `Transaction`
-  have been deprecated; use `ListBuilder` instead.
+* `QueryBuilder` classes on `Feed`, `Flavor`, `Key`, and `Transaction` have been
+  deprecated; use `ListBuilder` instead.
 
 ## 1.5.1 (20180320)