Restrict write access to root folder via FTP

[tisboyo]

Problem: When connecting via FTP, the root folder is writable and (IMO) shouldn't be.
Suggestion: Change permissions of root folder to read only
On Release 1.2.0-beta.1

Back story:
I was attempting to upload multiple ISO's from a file server, and chose to do it via multiple FTP sessions, which worked fine however for 2 of the transfers I forgot to change into the Drive\ISOs folder. It allowed the uploads until, I presume, they ran out of space and errored out. It wasn't until I looked to see what files were there that I realized it attempted to place them in the root folder.