Signed-off-by: Daniel F. Dickinson <cshored@thecshore.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>

While normally busybox version of findutils is enough, sometimes you want the full deal.

Here it is.

Signed-off-by: Daniel Dickinson <openwrt@daniel.thecshore.com>