CCBM 5.7.1 now available (maintenance)

A maintenance release is now available. Consider updating if you are using Version 5.7.0 or older.

Memory Optimisation for textual coverage merge ccbm_mco:
- redesigned to be less memory-consumptive,
  space for more input files is allocated dynamically (resolves #16517)

Instrumentation (ccbm_prep):
- add “==” to the list of binary operators (which is used in
  some context to parse initialises) – fixes #16121
- robustness: clean up useless rules (reported by yacc)
Utility for not-processed files (ccbm_empty_cov):
- fixed ‘;’ that are erroneously marked as ‘coding’ (#####)
  when within comments – fixes #16469