Makes a folder when filename has a "/" in it

[otwsayo]

[shibedrill]

This is due to youtube-dl trying to download a song with a slash in the name. this gets interpreted as a literal path separator, so windows creates a folder with a hashtag when trying to access the file. to get around this, I modified the code to remove slashes from the filename.
forward_slash_in_filename.patch
This patch is hacky as all hell, but it should work. It has to be applied to the 0.1.1 release tag.