Continued:

- updated 'core' framework

diff --git a/core b/core
index d693570a612eaadcd1d31875fdd2473737ebcead..cef490aa082a79da16d3dd2b1951dd993c9eda08 160000 (submodule)
--- a/core
+++ b/core
@@ -1 +1 @@
-Subproject commit d693570a612eaadcd1d31875fdd2473737ebcead
+Subproject commit cef490aa082a79da16d3dd2b1951dd993c9eda08