Release 1.18

ca_fl4k.s

changed flush whole cache to use index writeback

gbldata.h, gbllock.c

change ifdef MEZ to ifdef SOFT_LOCK - old mezzanine board did not have hardware locking nor
does new hot swap board. SOFT_LOCK is only used for software locking code

remove ifdef PCI - all boards are now PCI

global.c 

add ifdef HOT_SWAP - hot swap board needs different cache mode

pci.c

reduced the mapped memory size of pciIO from 0x10000000 to 0x0E000000.
add hot swap board specific interrupt enable code in enableGlobalInterrupt
add ifdef'ed special code for original 5420 memory map.

process.c

add hot swap specific code
add new file handle mode - zombie - used for shared memory handles which have been
unlinked but may still be accessed.

shardmem.c

set handle mode to zombie instead of unused for unlinked handle. The segment can still 
be referenced by existing pointers but it can not be mapped by name any more. Unused let
it get reassigned for new segment.

bsoerrnolh

add ENEXEC error code

galloc.h, gblint.h

change include of wmitypes.h to cac_defs.h

options.h

delete 5000 specific options. 5000 now same as 4700
add hot swap option

include/pci.h

add hot swap specific code

change VIRTUAL_TO_PHYSICAL macro to treat virtual address space with most nibble of C
as special case.

change PHYSICAL_TO_VIRTUAL to or in most bit instead of adding

include/signal.h

remove typedef sigaction_t for compatability

include/syslib.h

add zombieHandle define

lib/_galloc.c

in attachGlobalHeap
    add missing close 
    set handle field in globalHeap structure

in createGlobalHeapy
    set handle field in globalHeap structure

lib/_strerro.c

add string for ENOEXEC

lib/close.c

add case for zombie handle

lib/select.c, lib/sigactin.c

add include cac_defs.h