rebar3 support [JIRA: TOOLS-274]

[bobergj]

The rebar official repo now says that rebar is deprecated in favour of rebar3. Do you intend node_package to support rebar3 in the near future? I note that someone maintains a fork https://github.com/dergraf/node_package with support.

[tburghart]

We're working on rebar3 support for all of our packages, but my guess is that node_package will be later in the process. No specific public timeline at this point, but work is active and ongoing.