Fixed traceback with missing ani model on drawwindow
Removed explicit tracebacks for normal frame operations (output to console instead to make it less disruptive)
Fixed bug that caused traceback when selecting buttins in animation window.
Introduces a small fix to remove a startup traceback. Probably just hiding the problem rather than actually fixing it, but the AttributeError caused by the missing popup_states dictionary may be due to it not being set yet at startup maybe?