Defenses downgrade time interval

One issue that happens with some frequently is a quitting player downgrades all defenses to give easy pillage to others players, usually to friends.
(Note: this action violates the game rules).

To discourage this process a time delay between defenses downgrade will be implemented.

After a player downgrade a defense in a base, he can only downgrade other defense on the same base after a certain time.

Time interval to downgrade defenses again:

Barracks - 15 min
Laser Turrets - 30 min
Missile Turrets - 1 hour
Plasma Turrets - 2 hours
Ion Turrets - 4 hours
Photon Turrets - 8 hours
Disruptor Turrets - 12 hours
Deflection Shields - 12 hours
Planetary Shield - 24 hours
Planetary Ring - 24 hours

Example: after a player downgrade a Disruptor Turrets, he can only downgrade other defense in the same base after 12 hours.

If a player complete disband a base this rule is not applied.

While this may affect a little legitimate defenses downgrade, it contributes to a more fair play game.

This change will enter in effect in 1 week from now.