Other libraries

All GKD routines have been ported. `gkd_clear_alpha', `gkd_close', `gkd_init' are dummy routines. The rest are simple calls to (F)PAR. Calls to GKD should be avoided and (F)PAR be called directly.

`ich_cf' and `ich_cd' were modified to avoid copying substrings within one string. `ich_dfold' was included to provide for folding to lower case.

Version 3.1 included a library RTL, which was only an interim measure to satisfy numerous calls to VAX/VMS system routines on other platforms. Such calls have been eliminated from all code, the RTL library is withdrawn.