Remove dead code

Signed-off-by: Stefan Marr <git@stefan-marr.de>
Remove @SlowPath from getClassOf

Signed-off-by: Stefan Marr <git@stefan-marr.de>
Update to latest core-lib

Signed-off-by: Stefan Marr <git@stefan-marr.de>
Use main repo for core-lib

Signed-off-by: Stefan Marr <git@stefan-marr.de>