- Update to version 0.9.21
* improve AI logic for army distribution and object's priority
evaluation.
* generate proper UI elements which support translations.
* add Dutch, Hungarian, Czech languages and update multiple
existing translations.
* fix multiple issues with logic: missed alliance conditions for
campaigns, handicap income formula and etc.
* add UI options to switch between fullscreen and windowed modes
and enabling V-sync for monitors.
* Over 40 bugs are fixed since 0.9.20 release