Loads of cleanups and tidying ready for public source release.
Robert Sprowson authored
Moved macros and equates into seperate header files.
!MkClean now strips dependencies.
Single code change (cf.1.12) is to BIC out the bottom 11 bits of the
podule hardware address to get the sync base.
Sorry,no,bottom 12 bits.

Version 1.13. Tagged as 'SCSIDriver-1_13'
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