Quick fixes in the alpha

Update Alpha:

• Fix: You can no longer walk THROUGH the pillars on the first floor of the Yaqirpa dungeon
• Fix: Places you should not be able to get to in the Excalibur corridor during the great attack are now sealed off
• Fix: Saving the game would fail and even make you go back to the Windows Desktop screen. This has been completely fixed
• Fix: The link the the bug tracker in game could also act up... This has been fixed too.

Found any bugs I don't know about. Don't hesitate and report them on my issue tracker on GitHub. Thank you, and enjoy!