ChunkPurge

files were updated to support changes.

World Tick needed to be updated to change how the mod read world ticks,
as it was reading them incorrectly for 1.7.10 forge. It was also
modified to accept configuration for only chunk loading certain
dimensions.

Original commands were updated to give nicer, more readable looking
outputs. New commands were added to modify ignore radius around players,
chunk loading tickets (forced chunks), and the spawn independently. As
well as commands to view and modify the list of dimensions that are
currently being checked for chunk unloading. The README file was changed
to reflect all command changes, as well as a slight description change.

New command usage is listed in the README file on github