Ignore the IntelliJ IDEA project files
Merge remote-tracking branch 'origin/master' into BASE_BUSINESS_CORE
Corrected IntelliJ IDEA project files ignore list
Removed IntelliJ IDEA proect files
Refactored the commands: world object is now passed on the execute stage, added isAttacking flag for the person
Added PersonCharacter to the definition of the person, now it encapsulates person race and ther characteristics that could be modified during the gameplay
Replaced collision object with pair in mechanics collision detection