net-im/slack-bin: bump 4.0.2 (with small improvements)

[lovesegfault]

Doing a few things here:

1. Adding myself as a maintainer since I use this package daily and care about it
2. Yanking old versions
3. Bumping to 4.0.2 while cleaning up QA_PREBUILT and pkg_post{inst,rm}()

Closes: https://bugs.gentoo.org/687064
Package-Manager: Portage-2.3.75, Repoman-2.3.17
Signed-off-by: Bernardo Meurer bernardo@standard.ai

[gentoo-bot]

Copyright policy change

Please note that on 2018-09-15 Trustees have approved new Gentoo copyright policy. All contributions made to Gentoo need to follow this policy. If you include the Signed-off-by line in your commit message, you indicate that you have read the policy and agree to its terms. For more detailed explanation, please see the new Gentoo copyright policy explained article.

Pull Request assignment

Submitter: @lovesegfault
Areas affected: ebuilds
Packages affected: net-im/slack-bin

net-im/slack-bin: @SpiderX, @gentoo/proxy-maint

Linked bugs

Bugs linked: 687064

---

In order to force reassignment and/or bug reference scan, please append [please reassign] to the pull request title.

Docs: Code of Conduct ● Copyright policy (expl.) ● Devmanual ● GitHub PRs ● Proxy-maint guide

[gentoo-repo-qa-bot]

Pull request CI report

Report generated at: 2019-09-05 09:16 UTC
Newest commit scanned: 3b7cdd8
Status: ✅ good

No issues found

[juippis]

Come on, you saw in the bug report that there was a pull request already open for slack-bin bump. You should try to help the original author, and maybe make a bug report about your enhancements if they havent done it similariy. Or talk about it in the PR.
#12861

Keeping this open for now, @SpiderX can decide whether to work on this or his PR.

[lovesegfault]

@juippis Guess that's my fault for trying to do stuff at 3am 😄. Sorry about that, I swear I missed the other PR somehow.

@SpiderX Sorry for the duplication, let me know if you'd prefer I close this.

[juippis]

Please open a bug, or another PR, if your enhancements didnt get pushed so the maintainer notices it and reviews it. I didn't check what the difference was, it's up to @SpiderX :P