Ignore list

Hi,

Shouldn't the SublimeFiles use Sublime's settings "file_exclude_patterns" and "folder_exclude_patterns" instead of it's own "ignore_list" ? Or at least a settings to tell the Package to use them ?

These settings looks like duplication in my opinion.

If you find this interesting and don't have the time to, I can work on it and do a pull request :)

Indeed you are correct. I didn't even know such settings existed. I encourage you to work on it yourself and make a pull request as I simply don't have time to get around to fixing this for awhile.

Thanks so much for figuring this out!