Fix ignore loading

[beatngu13]

I've reverted fc48b8a because Files.lines(…) in GlobalIgnoreApplier.load() doesn't read in the terminating empty line break at the end, which would again cause a diff in the VCS. However, I think this is already an improvement.

[beatngu13]

I think I have now also resolved the file ending issue. JSShouldIgnoreLoader has:

@Override
public String save( final JSShouldIgnoreImpl ignore ) {
	return "";
}

Which creates unnecessary file content. I now filter it on save.