+Fixed a "division by zero" error, in Battle.php
+Reworked spied informations, now they're shown only if the building is
at least at level 1. Splitted residence/palace information in two
distinct informations. Now the total crannies capacity is displayed
(even if the capacity is 0) instead of the level of the greatest cranny
+Fixed "getFieldLevelInVillage" function in Database.php
-Removed an useless control in Units.php
+Added an error which warns you if you enter an invalid attack type (a
number greater tha 4 or less than 2)
+Fixed the possibility to spy with attacking troops by hacking the
attack type
+Some clean-up
iopietro