Just about everything needs extutils to be built.  But very little
requires it to run.

Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>

Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>

fix Makefile chmod (644)
replace MD5SUM with HASH
add PKG_MIRROR_HASH when PKG_SOURCE_PROTO:=git

(PKG_SOURCE_PROTO:=svn tarballs are not reproducible for now)

Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>

Signed-off-by: Marcel Denia <naoir@gmx.net>