Folder that exists causes file handler to return null file.

[Katsute]

This issue seems to be caused by line 173, but it is unclear if a change would break anything.

simplehttpserver/src/main/java/com/kttdevelopment/simplehttpserver/handler/DirectoryEntry.java

Lines 171 to 175 in d15bc78

	if(entry == null){ // add new entry if not already added and file exists
	final File file = getFile(path);
	return file != null && !file.exists()
	? files.put(context, new FileEntry(file, adapter, loadingOption))
	: null;