Getting updated reef-pi code from JFReyes

[JFReyes]

Hello:

Thank you @Dewd for discovering my mistake with the last release as it lacked the 4.0 features. I just fixed that.

The new release is reef-pi-4.0-10-gd159b10-MODIFIED.deb.


As for @Dewd's suggestions:

1) I'll look into using fractional values for the chart limits but it could be tricky due to using floating point numbers; they're always a pain to handle without a lot of error checking logic.

4) I don't want to hard code the update file's location but I could probably add a user changeable setting whose default value would be Rob's server (with his permission, of course) and that setting would display as a link in the About page. I'll need some time to study @Ranjib's logic to figure out a compatible solution.

Thanks,