[OPTI] Save the total acceleration.
Keeping the total acceleration.
Also instead of only keeping positive value, get also negative one and only make it positive when calculating the modulo (maxXP)
[OPTI] check if level up more than 1 level
[MOD] better icon
[ADD] When charging get back limb every hours
[MOD] Reset total accel every 20 mins.
Check vault boy status (lose/heal a limb) every 20 mins when resetting the acceleration
[FIX] Gaining XP when launching the watchface.
Every time the watchface was launched, like switching between watchface and app, the watch was taking the acceleration and giving XP for it when it shouldn't
Merge pull request #5 from Belphemur/master

Some optimization + balancing the XP gain