Version 0.3.1

• Update to fortran-src 0.10.2
• Do some type checking for logical operators used with non LOGICAL arguments
  #6
• Add type checking for imag, lshift intrinsics
• MemoryLocation: change getLocation to return a Maybe type
• Memory: expose getTypeSize function

Release 0.3.0

• Update to fortran-src 0.8.0
• Replace BozDecomposed with new Boz type in fortran-src
  • Due to how the BozConstant module was used, this should have minimal
    impact. Code that reads and writes BOZs into ExpVals directly may need
    updating.