Hidden file processed during File scanning on OSX (Mac)

[simoncn]

MinimServer used to do this but it caused problems because there are some artist names, album names and track names that start with '.' or '...' and users didn't understand why they could name their files and folders in this way on Windows but copying these files or folders to a NAS made MinimServer unable to find them.

To solve this problem, automatic exclusion of Linux/Unix files and folders whose names start with a dot ('.') was replaced with the excludePattern property to provide a more flexible way of optionally excluding files and folders based on characters in the name that works consistently on all platforms.