Add method to acmParse class to do the hashing.  Add parameter to constructor to take Sinit to MLE Data Table Version for hash algorithm selection.
Use method from acmParse class to get ACM hash.
Wrap fopen in try/except.  Localize related hash stuff. Clean up old comment.
Add parameter to allow caller to specify value for EDX flags.  Default to 0 still.
Use new method on acmParse class to get digest of ACM.
Wrap file open on ACM in try / except block.
Allow caller to use --edx argument like the sinithash program.
Add comment to explain reason for selecting sha1 vs sha256 for ACM hash.