Focus on providing data on-demand to reduce memory footprint
Chunk's last modified timestamp is now used to determine visit status in addition to flags, guarantees chunks that see regular use will be considered visited
Exposes methods for deleting chunks
Back up flag data when deleting chunks - can be checked with /regionerator check
Moved more of deletion off the main thread
Minimized interaction with flagging cache on main thread
More data exposed for double checks
Reduced database operations
Added /regionerator cache for checking cache/queue counts. Really not super useful unless you're looking to see how database conversion is going.