Version 0.2

- code cleaning
- some new shortcuts, and tooltiptext to indicate them
- cleaning of the timer code
- sorting of the results
- windows resizing and disabling window resizing
- indication if the previous operation was well performed or not
- Operations instead of prod
- creation of a level classe to make code simpler, and make level creation easier
- lock to avoid several version to run at the same time
- changlog start
- seeking for an existing browser in order to open the about url ( url that is now contained in the Version file )