v3.0 - Beta 1

To get changelog compare it with 2.0.1, I'm lazy to do one on every beta xd

If you try this version, test min, avg and max hr and kcal values, you have to put your weight, age and gender in settings and then every train you do you will get all this values. Test accuracy of kcal because I don't know how good is the formula I've used to calculate kcal (If you know any better formula tell me)

If you find any bug or have any suggestion please open an issue