add frm-to-schema to README.md
disable import-ibd command

- this is is currently not implemented and only a stub
  was in place for future work
handling parsing failures more elegantly

- just increment a flag and continue rather than aborting
  immediately on a parsing failure.  Parsing failure are expected
  for views, for instance.
add some useful output messages to contrib/mkscript.py

- this script generates an executable python .zip archive
  this fix just outputs some information about what's happening.