Update log 2018.02.22: new monsters + castle attacker exp adjustment

We did some updates today:

  1. New Etheremons have been released:

Three Gasons

Form two and three of Etheremons

2. A badge is added for the 1st, 2nd and 3rd Etheremon

3. As the gas price is quite high recently (safe low is about 1 -> 2 Gwei), the exp gain for castle attackers are set back to normal(it was 50% of normal gain).