pidgin/nest

Update for the 2.14.3 release

2021-04-09, Sorvival
d386f4debb86
Update for the 2.14.3 release

- Modify config.toml to use the new version
- Add notes for 2.14.3 to ChangeLog
- Add blog post for Pidgin 2.14.3

Testing Done:
ran `dev-server.sh` and verified contents were the expected

Reviewed at https://reviews.imfreedom.org/r/600/
{
"gplugin": "keep.imfreedom.org/gplugin/gplugin/",
"libgnt": "keep.imfreedom.org/libgnt/libgnt/",
"pidgin": "keep.imfreedom.org/pidgin/pidgin/",
"plugin-pack": "keep.imfreedom.org/pidgin/purple-plugin-pack/",
"talkatu": "keep.imfreedom.org/talkatu/talkatu/",
"www": "keep.imfreedom.org/pidgin/nest/"
}