Updated version number.

Just realised there was some unreleased (untested) changes, so I'd
better increase the version number.

Author: ForkandBeard

SpriteSheetUnpacker/My Project/AssemblyInfo.vb

@@ -31,5 +31,5 @@ Imports System.Runtime.InteropServices
 ' by using the '*' as shown below:
 ' <Assembly: AssemblyVersion("1.0.*")> 
 
-<Assembly: AssemblyVersion("11.0.0.0")> 
-<Assembly: AssemblyFileVersion("11.0.0.0")> 
+<Assembly: AssemblyVersion("12.0.0.0")> 
+<Assembly: AssemblyFileVersion("12.0.0.0")>