New config element 'worldedit' to switch between original and enhanced code.
If 'worldedit' is true on copy the world files will be in a directory structure like 'preprend-world' being false whereas Zip files will have the world name prepended as a separate folder.

This enhancement is necessary to have WorldEdit Snaphshot compatible folders and Zips
Merge pull request #1 from zody0210/master

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