GenSim 1.5b

Changes:
 + Title bar shows file name
 * Fix clutch size error messages
 * Chicken control hotkeys work when table not selected
 * Cleaned up code

(* is changed, + is added, - is removed)
GenSim 1.5

Changes:
 * Cleaned up code
 - Unnecessary threading and thread safe elements

(* is changed, + is added, - is removed)