doc: Update release notes from wiki

Update release notes from wiki, and fill in authors list from git.

Additional credits:

- Awemany (for #10854)
- Gregory Maxwell (release notes writing)
- John Newbery (release notes writing)
- Kibbled Jive Elk Zoo (for bitcoin/bitcoin#10177 (comment))
- Luke Dashjr (release notes writing)
- Marco Falke (release notes writing)
- Pieter Wuille (release notes writing)
- Rusty Russell (release notes writing)
- tintinweb (for early-announcing miniupnp CVE-2017-8798, forgot this for 0.14.2)

Tree-SHA512: 8024eb761fcac4bb7f16ba3a9db376508f1f1bcf8a89cfb5e2928ad384675d3e912cada6ffef7d5aac181a965ebb8b823f6a63d9e976c1be753ec8eb9a8b9ef5

Author: laanwj