Continued:

- updated core framework

Signed-off-by: Roland Häder <roland@mxchange.org>

diff --git a/core b/core
index 498e6b065ce47804bff4e1073592a2cc8e28f8ef..28ff0710d8eb3a2d0c1547d6ebeaae05eb50c7f6 160000 (submodule)
--- a/core
+++ b/core
@@ -1 +1 @@
-Subproject commit 498e6b065ce47804bff4e1073592a2cc8e28f8ef
+Subproject commit 28ff0710d8eb3a2d0c1547d6ebeaae05eb50c7f6