Minor bug fixes (ver 1.2.1)

The following minor bug fixes have been implemented:

• opening one of the valves in the bar froze the game on slower PCs - this is now fixed,
• there was a sound artifact while opening the valves in the bar - it is no longer there,
• skipping the kindergarten cutscene did not stop the animation of the teacher - the animation stops now,
• blinking in the cathedral has been made slightly bigger.