* add BAKTRACE to HCFILES fails. Skip HC of CLTL2 (package errors) and dinfo (not really tedit).
* IMNAME.TEDIT isn't really TEDIT it's text. rename it.
* internal/mesatypes.tedit now sources/MESATYPES.TXT move from internal to sources (loaded by sources), also move MESATYPE*
it took a long time to figure out how to restore old versions, using the './scripts/restore-versions file'. Now that it's there and tested it should be ok to remove them from new 'git clone' of medley