- pass on ident string to hex_print()

- pass on ident string to hex_print()
- pass on ident string to ascii_print()
- pave the way for eliminating print_unknown_data()
  and subsequent hex_print() replacement

- clean up the default_print() related functions:
  - call always into print_ascii() b/c just hexdump data
    is uninteresting; hex-offsets plus ascii representation
    is what most people are looking for
  - remove default_print_unaligned() as it is now obsolete