add a stub Makefile for BSD make
NetBSD doesn't have -luuid.  uuid(3) lives in libc.
Merge pull request #40 from yamt/netbsd

build fixes for netbsd
modify rebar.config for newer rebar versions
Merge pull request #42 from nivertech/rebar_fix

modify rebar.config for newer rebar versions
Updates rebar
Merge branch 'upstream'