community/weechat: upgrade to 2.7
- Ref https://github.com/weechat/weechat/releases/tag/v2.7
- Remove patch as it was applied upstream
- Fix lint warnings about use of ${_name} and $pkgname in source
- Add asciidoctor to depends_dev
- Change libint for gettext-dev in depends_dev
- Add $pkgname-doc and $pkgname-lang to subpackages
Edited by Oleg Titov