Optimize document and folder mappings (and save lot of disk space)
Optimize document and folder mappings (and save lot of disk space)

Closes #183.

kneubi/fscrawler,kneubi/fscrawler,dadoonet/fsriver,dadoonet/fscrawler,dadoonet/fsriver,dadoonet/fscrawler,dadoonet/fsriver,dadoonet/fscrawler,kneubi/fscrawler