Elixir version of ruby-build

Current versions:
20141001 HEAD

Homepage: https://github.com/mururu/elixir-build

Formula history

Mike McQuaid Use hash rockets again. (#5177)
Mike McQuaid Use Ruby 1.9+ symbol hash keys in all formulae. (#4942)
Xu Cheng elixir-build: bottle unneeded
Andrew Janke audit fixes: E 02: elementary - emscripten
Baptiste Fontaine elixir-build: conflicts with narwhal
Nikolaus Wittenstein Add descriptions to all remaining homebrew packages
Yuki Ito elixir-build v20141001
Andrew Kofink elixir-build 20140421