Implemented tower upgrading
merge
Rewrote mapcreatordynamic to be flexible when inherited from
Added javadoc for a method
fixed merge conflicts
Fixed a bug with sell towers
Fixed new game bug
Superduper hest
Merge with Oskar
fixed stuff
Added onSave and onLoad methods to worldstate and implemented on save/load
Added try catch when opening a map and unregister all method in gamebus
Handled merge conflicts
Fixed null pointer exeption
merge
Added a database connection pool
Fixed menu buttons
fixed merge conflicts
Cleaned up code
Implemented database connection pool in classes using database