Plugin improvements

Hi, thanks for this nice plugin. It is very lightweight, perfect for my needs. You have done a great job but I think it can be improved…

For example you can save in the post meta 2 fields, one for unique visitors (by IP) and one for total visits. This way we can extract this data for each post via the get_post_meta function (I need these 2 values for my project).

Another very important thing that other developers are implementing is the exclusion of bots from the visit count. I think you should implement this option as well. Anyway thanks for your job and keep up the good work.