v1.4

Another small update:

• Prevented an unused and unimplemented interaction from glitching out. Late game spoilers (ROT13): Gelvat gb perngr n gnyy wryyl jura gurer’f nabgure wryyl ba gbc ab ybatre pyvcf gurz vagb rnpu bgure.
• Level 2 (Islands): added a wall to prevent players from discovering an irrelevant mechanic and significantly reduce the possibility space.
• Level 8 (How Odd): simplified the level layout to make the solution a little more interesting.