Replace the use of the word `column` by `field` as it is better suited to design a database column name.
Make it more readable for my eyes.
Make the `enable` setting affect all the public methods.
Move the logic of the `PostStats` class into an extension of the `rsExtPost` class.
Uniformize the name of the classes.
Add the `percentage` and `round` attributes to the `EntryRelativePopularity` tpl element.
Bring on the v0.5.0.