Migration fails, if plugin directory contains hidden folder

[ukdtom]

If the Plug-in directory contains a folder like ._Plex-FindUnmatched.bundle it'll fail.

We need to ignore folders starting with a dot

[chrissearle]

The specific case here is from AppleDouble format - but - safer to ignore all "." prefixed directories

[ukdtom]

Fixed in d34e20a
Slated for V2.2