ensure that fsFile.bytesUploaded is always set correctly
update console log message to be more correct
clean up and improve some transfer code
add functions for getting an FS.File or setting FS.File data from a URL on the server
refactor code to be a bit cleaner
Add instructions for installing for testing
Internally, change all "master" stuff to be the same as "copies". External API is still the same, but master options are copied to a special copy named "_master" so that all the other code can be cleaner. This may be a step toward being able to blur or eliminate the master/copy distinction, although there are still some benefits to having a master.
add security section
Pull out temporary chunk code into a separate tempStore.js file, within a TempStore object. This makes it easier to maintain. Also updated the file worker code to correctly find temporary chunks that can be removed and delete those files.