Alpha 35 hotfix 5

Big thanks to Rarasek and Chronos0305 for their help in pinpointing these crashes.

• Fixed crash caused by dismounting a steed into a tile that's inaccessible to the steed.
  
• Fixed crash caused by traveling while riding a companion creature.
  
• Modded item key verification error will include the file name and line number where the bogus key was used.
  
• Fixed infernite sword's name.