Support non-UTF-8 filenames, even when the default external encoding …

…is UTF-8.

I'm pretty tempted to just say "set your default encodings properly", but since
we aren't actually doing anything that requires knowledge of the encoding of the
string, we might as well work around the issue.

You should still set your default encodings properly, though.

lib/rb-inotify/notifier.rb

@@ -190,7 +190,7 @@ def watch(path, *flags, &callback)
       return Watcher.new(self, path, *flags, &callback) unless flags.include?(:recursive)
 
       Dir.glob(File.join(path, '*'), File::FNM_DOTMATCH).each do |d|
-        next if d =~ /\/\.\.?$/ # Current or parent directory
+        next if d.dup.force_encoding('BINARY') =~ /\/\.\.?$/ # Current or parent directory
         watch(d, *flags, &callback) if !RECURSIVE_BLACKLIST.include?(d) && File.directory?(d)
       end