'RELENG_3_0_0_RELEASE'.

This commit was manufactured to restore the state of the 3.0-RELEASE image.
Releases prior to 5.3-RELEASE are omitting the secure/ and crypto/ subdirs.

'RELENG_3_0_0_RELEASE'.

(This might make ELF_VERBOSE look funny, but I'm tempted to delete that
 anyway)

avoid the need to seek back to offset zero which is causing trouble on
the Alpha with a gzipped kernel.

can seek back to the first PT_LOAD and doing a close/reopen if it cannot.
This is because the first PT_LOAD section includes the ELF headers.
This fixes gzipped kernels on the i386, it should solve mike's problem
for the Alpha.

is useful, and usually fits all on one line with the load sizes.

Drastically quieten down the verbose load progress messages.  They were
more useful for debugging than anything, but are beyond a joke when loading
a few dozen modules.
Simplify the ELF extended symbol table load format.  Just take the main
symbol table and the string table that corresponds.  This is what we will
be getting local symbols from.  (needed for the alpha stack tracebacks).
Use the (optional) full symbol tables in lookups.  This means we have to
furhter distinguish between symbols that can come from the dynamic linking
table and the complete table.
The alpha boot code now needs to be adapted as ddb/db_elf.c cannot use
the simpler format.
I have not implemented loading the extended symbol tables from the syscall
interface yet, just for preloaded modules.
I am not sure about the symbol resolution.  I *think* it's possible that
a local symbol can be found in preference to a global, depending on the
search sequence and dependency tree.

 - get dependency info from PT_DYNAMIC's DT_NEEDED tags.
 - store MODINFOMD_DYNAMIC for the kernel's later use
setenv kernelname when we have it
Fix firstaddr/lastaddr calculation (duh! :-)
Explicitly skip string table with section names in it.