* bmk/megaco/flex_buffer_overrun_while_scanning_prop_parms/OTP-10998/r13:
  [megaco] Used wrong downgrade tag for (flex) handler
  Changed name of test case functions (from seq12263 to otp10998)
  Assign correct version and updated release notes accordingly.
  Removed comments
  Ensure of incorrect number of terms when scanning property groups
  Uncommented test cases
  Add new messages
  Calculation of term_spec size (initial and next) changed
  Minor test case rework
  Test case cleanup
  Add rule for test beam'es
  Preliminary test case updates

Also added (and cleaned up) appup.

Conflicts:
	lib/megaco/src/flex/megaco_flex_scanner_drv.flex.src

At the end of the mfs_load_property_groups function, the
final property group list and property groups list is
"terminated". A call to mfs_ensure_term_spec with (incorrect)
size 4 was made prior to this to ensure enough data was available.
The correct size was 6!

There seem to be some problem with realloc (core dump)
so the calculation of the term_spec size needs to be
"corrected".