integrating with an MRF.

Upstream changelog:

2.5.0
- Optional formatting of records in traces (thanks to @bartekgorny)
- Basic support for OTP-22 in recon_alloc (base handling of foreign_blocks type)

This reverts merge request !2194

needed to make it use fast_html

The parser C-Node has been completely rewritten to not use the deprecated
`erl_interface` api.

Closes #1378 since Nodex was ripped out and the replacement randomizes
master node name.

This release brings a major performance imrovement, see
https://github.com/martinsvalin/html_entities/pull/17

Otherwise swarm is going to attempt resizing the cluster and timeout

As per discussion on irc, we already used GNU-style versioning system
for release candidates, so it makes sense to use it for develop builds as well.