Rearranged some more I/O.
Moved all queue definitions out into their own header file so that
netlib_ssl.h can include them.
Fixed up table of contents and correct typos.
Fixed up read routine to make sure we only take the right kind of
descriptors.
Moved INIT_QUEUE into quedef.h.
Add queue_empty and queue_single.
Restored typedefs that had accidentally made it into quedef.h.
Cut'n'paste typo... :-(
Extended to include arguments on SSL functions (still more to go) as
well as a target in descrip.mms for building multi-language NETLIBDEF
include/header files.