* Fix memory leak caused by mob spawner items
* Use a weak hash map instead of manually clearing the map
* Clear manager reference to prevent holding a WorldClient reference through the GUI
* Revert "Use a weak hash map instead of manually clearing the map"
This reverts commit 91bb997250.
* Update build script
* Update build script to import fix for shadow in dev and sources artifacts
* Update fixed build script to shadow csv dependency in dev jar as well
* Moved jitpack
* Move new files
Jason Mitchell