- add hard limit on number of new rows for creation of incremental
version:
- the limit is defined by -X command line option (do not mix up
with old lower case -x option used for soft limit); if it is not
provided, then the limit is ignored
- when the limit is achieved, no archiving is performed and oks2coral
reports fatal ERS error
- when soft limit (defined by -x command line option) is exceeded,
oks2coral issues ERS error to inform shifter about necessity to create new
base version and performs archiving