add erlang 15 for centos
build - add test dep for openacd
add openacd v2 to rpm list
Update erlang-ej to c33ab74

Conflicts:

	erlang-ej/.sipxecs.mk
	erlang-ej/erlang-ej-0001-Replace-git-based-app-vsn.patch
	erlang-ej/erlang-ej.spec
Update erlang-ej to da5e71c

Conflicts:

	erlang-ejrpc2/.sipxecs.mk
	erlang-ejrpc2/erlang-ejrpc2.spec