[ADD] If no mouvement detected, no XP gain + penalty.
If the player doesn't move between each minute, he won't get the XP and will also get a small penalty, the average used to calculate the max will then be + 1 as number of acceleration but won't take the acceleration that is not different.
[OPTI] Put the divergence to 45 for min mouvement
Merge pull request #6 from Belphemur/master

Check if player moved or not the watch