0.5
- changed license to MIT
- "clean_entities" & "clean_nodes" files now use json format


0.4
- changed technical name to "cleaner"
- re-added functionality to clean nodes


0.3
- removed functionality for cleaning anything other than entities


0.2
- changed license to CC0
- added some log output
- entities to be cleaned can be configured & loaded from world directory


0.1
- forked from PilzAdam's "clean" mod @ forum post updated: 2013-06-08
- replaced deprecated call to "minetest.env"