Would be nice to add the following stats to the player info popup (or the clan members list panel):
1. Reliability: a number that gets small when the player not attack in war.
2. Strength (could find a better name): how useful this player is in war. The is calculated as how many stars he achieves divided by how many stars are achieved against his base.
3. Activity: some number based on how long is he logged during the day recently.

