Add this data to every user. Lots of code is done in my local machine, but not uploaded because some of the changes in db could be better and we don't want to make two conversion filters.

Some of the features are:
-Initially available sports will be the olympic sports
-Athletics has sub-sports
-Users can also add sports
-Levels are defined
-There's a little of interaction between levels and sports in dialogue
-Users could select a "main" and a "secondary" sport
-Design is thought for being able to be uploaded to the website


There are thing to discuss like the possibility to select also "physical activities", and select also not recongnised sports like aerobic.