Bug#1023300: new upstream: elixir-phoenix

Control: retitle -1 elixir-phoenix Phoenix Framework -- Peace of mind from prototype to production

Bug#1023300: new upstream

https://gitlab.com/yhm-amber/phoenixframework.phoenix in the past 2 years the forge that i originally linked to (freecumextremist) went down. thankfully in that time yhm-amber seems to have stepped up and produced a version of this on gitlab. That should serve as upstream here instead of FCE Jef