0.9.037


 * Improved dwarves AI:
 * dwarves now seek for active tasks near portals opened by player,
 * fixed dwarves behavior near beware signs and inside the elevators,
 * fixed dwarves behavior at the some pools with bridges,
 * Improved archers AI.
 * Improved placement of secret rooms in level generation algorithm.
 * Fixed freezes and errors in dwarf's attack animation, yeti's and skeleton's animations.
 * Fixed misplaced block marks when cancel selected item in the fast slot.
 * Fixed traps placement above ground level and hanging of several constructions after removing blocks below them.
 * Fixed effect of the forest spell.
 * Fixed hanging rails after giant worm passing.
 * Fixed crashes when open old saved games with previous recipes tree.
 * Fixed periodically unlocking of all levels when starting a new campaign.
 * Fixed some visual defects with level tiles and interface.
 * Fixed calculation of double wall durability.
 * Fixed several crash issues and memory leaks.