Log message:
Add a minor version to the shared libraries; otherwise a bootstrapped
build does e.g. "ln -sf libelf.so.1 libelf.so.1" and then install
fails with ELOOP.

This is a bug in bootstrap-mk-files but I'm going to fix it in both
places to avoid demanding rebootstrapping.

Log message:
Not MAKE_JOBS_SAFE.

Log message:
Initial import of elftoolchain-0.5.1 into the packages collection.

	A BSD-licensed implementation of compilation tools (nm, ar,
	as, ld, etc.) for the ELF object format.

	This release contains BSD-licensed implementations of the
	"libdwarf" and "libelf" libraries, and of the \ 
"addr2line",
	"ar", "brandelf", "c++filt", "elfcopy", \ 
"elfdump",
	"findtextrel", "mcs", "nm", "ranlib", \ 
"readelf", "size",
	"strings" and "strip" program development utilities.  The
	release also contains API and utility reference documentation
	(300+ manual entries in all), and contains test suites for
	some of these released utilities and libraries.

With thanks to jkoshy for all the help.