I can confirm this bug. Same error:
TypeError: update_next_button() got an unexpected keyword argument 'install'
I tried both 20130308 and 20130309, happens on both. It does not happen on alpha-2.
I can confirm this bug. Same error:
TypeError: update_ next_button( ) got an unexpected keyword argument 'install'
I tried both 20130308 and 20130309, happens on both. It does not happen on alpha-2.