Patch 0.5.9.48 (Bug Fixing)

I made a lot of change to the code yesterday. There are a lot of bugs but I think managed to fixed (hopefully) all the bugs that you guys found.

• Fixed a bug that make the game crash when using Hammer in the mines.
  
• Fixed HUD display bug when you're in the mines.
  
• Fixed a crashing bug when you try to upgrade a building.
  
• Fixed crop display bug.
  
• Working on farm decorating system.