Update notes for submitted changes

* GitlinkMergeTest: fix boxing warnings
* Remove unused API problem filters
* Add missing since tag on BundleWriter#addObjectsAsIs
* Merge branch 'master' into stable-5.9

8b/b172acdba86ae590d4057c4fef4f9db8134075

@@ -0,0 +1,7 @@
+Verified+1: JGit Bot <jgit-bot@eclipse.org>
+Code-Review+2: Matthias Sohn <matthias.sohn@sap.com>
+Submitted-by: Matthias Sohn <matthias.sohn@sap.com>
+Submitted-at: Sun, 06 Sep 2020 06:09:35 -0400
+Reviewed-on: https://git.eclipse.org/r/c/jgit/jgit/+/168863
+Project: jgit/jgit
+Branch: refs/heads/stable-5.9

94/aab2f634f727b61f30932f962b94e21104437a

@@ -0,0 +1,7 @@
+Verified+1: JGit Bot <jgit-bot@eclipse.org>
+Code-Review+2: Matthias Sohn <matthias.sohn@sap.com>
+Submitted-by: Matthias Sohn <matthias.sohn@sap.com>
+Submitted-at: Sun, 06 Sep 2020 06:09:35 -0400
+Reviewed-on: https://git.eclipse.org/r/c/jgit/jgit/+/168862
+Project: jgit/jgit
+Branch: refs/heads/stable-5.9

da/ddfe051b1e9fd74af58b72c9b7d3a25b1c6aa3

@@ -0,0 +1,7 @@
+Verified+1: JGit Bot <jgit-bot@eclipse.org>
+Code-Review+2: Matthias Sohn <matthias.sohn@sap.com>
+Submitted-by: Matthias Sohn <matthias.sohn@sap.com>
+Submitted-at: Sun, 06 Sep 2020 06:09:35 -0400
+Reviewed-on: https://git.eclipse.org/r/c/jgit/jgit/+/168861
+Project: jgit/jgit
+Branch: refs/heads/stable-5.9

f3/3702dd29412a6a38671c757c83c3717aae47ca

@@ -0,0 +1,7 @@
+Verified+1: JGit Bot <jgit-bot@eclipse.org>
+Code-Review+2: Matthias Sohn <matthias.sohn@sap.com>
+Submitted-by: Matthias Sohn <matthias.sohn@sap.com>
+Submitted-at: Sun, 06 Sep 2020 06:09:35 -0400
+Reviewed-on: https://git.eclipse.org/r/c/jgit/jgit/+/168864
+Project: jgit/jgit
+Branch: refs/heads/stable-5.9