Update to 3.8.0.0-rc2

Changelog

All notable changes to GNU Radio will be documented in this file.

The format is based on Keep a Changelog
and this project adheres to Semantic Versioning, starting with version 3.7.12.0.

Older Logs can be found in docs/RELEASE-NOTES-*.

[3.8.0.0-rc2] - 2019-07-20

This is the second release candidate for GNU Radio 3.8.

• 1. Fixed
     1. Project Scope
• Last minute patch lead to SWIG libraries not getting installed into the right Python paths
  1. gr-utils
• gr_modtool: Paths with spaces in them used to break

• 1. Changed
     1. GRC
• Copy & Paste behaviour now like on 3.7: appending numbers to block IDs only on conflicts

[3.8.0.0-rc1] - 2019-07-17

This is the release candidate for GNU Radio 3.8.

For brevity reasons, this document does NOT contain a complete CHANGELOG
comparing 3.8.0.0 to 3.7.0, because the development model changed underway, and
there's no human-feasible way to detangle the changes from more than six years
of development.

The major user-relevant changes will be noted here in the actual release.

What we can do here is point out that we've got a glorious amount of 215
individual contributors that added at least one commit since 3.7.0.

This is a big step towards the future of the world's most popular FOSS SDR
framework.

Let us ride eternal, shiny and chrome.

Pet Portlint

PR: ports/239345
Submitted by: mike.english@gmail.com