Merge #15993: net: Drop support of the insecure miniUPnPc versions

59cb722fd0 Update configure to reject unsafe miniUPnPc API ver (Hennadii Stepanov)
ab2190557e doc: Add release notes for 15993 (Hennadii Stepanov)
02709e9560 Align formatting with clang-format (Hennadii Stepanov)
91a1b85083 Use PACKAGE_NAME in UPnP description (Hennadii Stepanov)
9f76e45b9d Drop support of insecure miniUPnPc versions (Hennadii Stepanov)

Pull request description:

  1. Minimum supported miniUPnPc API version is set to 10:
  - https://packages.ubuntu.com/xenial/libminiupnpc-dev
  - https://packages.debian.org/jessie/libminiupnpc-dev

  Refs:
  - #6583
  - #6789
  - #10414

  2. The hardcoded "Bitcoin" replaced with `PACKAGE_NAME`:
  ![Screenshot from 2019-05-06 23-10-29](https://user-images.githubusercontent.com/32963518/57253178-afc60780-7056-11e9-83c9-e85670c58c1e.png)

  3. Also style-only commit applied.

  Pardon: could not reopen my previous PR #15966.

ACKs for top commit:
  ryanofsky:
    utACK 59cb722fd0. Changes since last review: adding a new commit which updates configure script to fall back to disabling upnp if version is too old, adding a requested comment explaining static_assert condition, and fixing a spelling (jessy/jessie)

Tree-SHA512: 42ed11bc2fb2ec83d5dd58e2383da5444a24fd572707f6cf10b622cb8943e28adfcca4750d06801024c4472625b5ea9279516fbd9d2ccebc9bbaafe1d148e80d

doc/release-notes-15993.md

@@ -0,0 +1,3 @@
+Build system changes
+--------------------
+The minimum supported miniUPnPc API version is set to 10. This keeps compatibility with Ubuntu 16.04 LTS and Debian 8 `libminiupnpc-dev` packages. Please note, on Debian this package is still vulnerable to [CVE-2017-8798](https://security-tracker.debian.org/tracker/CVE-2017-8798) (in jessie only) and [CVE-2017-1000494](https://security-tracker.debian.org/tracker/CVE-2017-1000494) (both in jessie and in stretch).