move include tools.mk in Makefile so all target is default
move include tools.mk in Makefile so all target is default

sargun/riak_ensemble,basho/riak_ensemble,ricardobcl/riak_ensemble,basho/riak_ensemble,cmeiklejohn/riak_ensemble,sargun/riak_ensemble,ricardobcl/riak_ensemble,cmeiklejohn/riak_ensemble