Fix ./rebar compile of elixir files
Update rebar
Update rebar again
Fix method atoms
Rip out broken stream_raw
Fix stream_raw removal
Make Elixir optional
Update README_ELIXIR
Clarify that .dtl can be used with Elixir
Prep for 0.8.1
Socket should return ok, otherwise generating process can blithely continue even when it can't send data.