Log Message:
erlang-luerl: Update to 0.4

upstream changes:
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  o Reformatted test chunks to make them more legible
  o Add proper handling of full userdata
  o Add test of function records to handle both forms
  o Remove experimental array functions
  o Fix handling of random number for ranges and value 1
  o Fix implementation of mod '%' operator
  o Update tests to new decode of functions
  o Add a Makefile for the minibench
  o Complete split of function record into separate lua and erlang records
  o Merge pull request #90 from benjamintanweihao/patch-1
  o Split function record into separate lua and erlang records
  o Fix Getting Started wiki link
  o Merge pull request #85 from lastcanal/sandbox_runner
  o remove random seed setting from sandbox runner
  o Add luerl_sandbox module, a sandbox builder and reduction counting ru…
  o Changes for hex.pm package
  o Update README.md
  o Make the random state part of the Lua state
  o Cleanup rebar3 config script
  o Fix generation of erlang version macro flag
  o Fix generation of erlang version macro flag
  o Set correct return values for luerl:load
  o The math lib now always uses the correct module random/rand
  o Add handling of erlang version based compiler macros
  o Fix handling of #! and Windows BOM when loading files
  o fixing typo in README
  o Adding support for maps to encode() and fixing README
  o Fixes make clean