Log Message:
/emulators/hercules4sdl: update to 4.8

For a list of changes included in this release, refer to the "Summary of
changes" below or the "What's New" web page at:

   https://sdl-hercules-390.github.io/html/hercnew.html

Summary of Changes:
-------------------

* Fix rare Hercules crash in QETH device handling if LSO enabled
* Fix CCKDDU64 failure on very large (e.g. 3390-54) dasds (Andrew)
* Fix cckddiag/64 CFBA crash and correct associated DOC
* Fix storage key double-keyed 4K-byte-block bug (Pascal Parent)
* Fix timer interval bug in rubato_thread causing excessive CPU
* Fix QDIO SQBS/EQBS instruction return codes (James Wekel)
* Fix 17 yr. old SIE bug (Pascal Parent)
* Fix minor trailing path separator bug in 'sclproot' command
* Fix LCS device confusion with preconfigured interfaces (Ian Shorter)
* Fix 3880/3990 control unit chaining requirement
* Fix bug in ED24 LDE (LOAD LENGTHENED) instruction (Ian Shorter)
* Fix CTCE support for VM TSAF facility (Peter Jansen)
* Fix Shared Device Server/Client "CU=" mismatch bug (Fish)

* New: Support for 32-bit x86 Windows builds has been dropped (Fish)
* New: Improved performance of SLA, SLDA, SLAK, and SLAG instructions (Fish)
* New: Compressed CKD/FBA Dasd Hardener (Ross Patterson)
* New: card2txt: utility to translate EBCDIC cards to ASCII file (Fish)
* New: txt2card: socket output option (Fish)
* New: MTS (Michigan Terminal System) HIM (Host Interface Machine) device
support (Mike Alexander)
* New: zVector Facility support (salva-rczero, James Wekel, Ian Shorter)
* New: Message Security Assists 5 and 7 support (Jurgen Winkelmann)
* New: Report unavailable host instructions
* New: dasdinit: Warn if extension doesn't match compression option
* New: SoftFloat libs updated to new version