Update Makefile, build-ui creates apps/epl/priv dir
Update Makefile, build-ui creates apps/epl/priv dir

Baransu/erlangpl,erlanglab/erlangpl,Hajto/erlangpl,mkacper/erlangpl,mkacper/erlangpl,mkacper/erlangpl,Baransu/erlangpl,Hajto/erlangpl,erlanglab/erlangpl,Hajto/erlangpl,Baransu/erlangpl,erlanglab/erlangpl