v10.0.3 release

We are pleased to announce the release of D++ 10.0.3! This release adds, amongst other things:

• HTTP Keepalives, meaning that the library can send API calls much faster, and respond to slash commands quicker!
• Refactored ordering of member variables saving significant memory at scale
• Added utility functions for escaping of markdown
• Removal of the type string from confirmation_callback_t, as std::holds_alternative can do this instead

The changelog is listed below:

Release Changelog

🐞 Bug Fixes

• ordering
• missing virtual dtors
• naming and size of BUFSIZZ
• match new order in initialisation
• some fixes to keepalive, don't allow any session left idle for more than 60 secs to be reused, and dont try and save known dead connections where fd = -1
• fixed wrong return types of several cluster methods
• fix wrong http method
• fixed user::get_avatar_url
• broken include got in here somehow
• spelling errors
• we had two json_fwd.hpp
• fix docs check
• Fix #227 remove docs pertaining to messages_get with limit > 100
• Fixes by misspell-fixer

✨ New Features

• added > character to escape markdown method
• http connection keep-alive and request chunking
• added get_sticker_url to sticker class
• add dpp::utility::version()

♻️ Refactoring

• reorder structures to match alignment(amd64)
• add json_interface that specifies the standard methods the rest_request<> template uses
• migrate all possible REST to new template
• move these to using the template
• start of templating rest call bodies. much neater
• improve performance of url_encode, move to utility namespace, expose a bunch of internal templates in dpp namespace from stringops.h

📜 Miscellaneous Changes

• updated docs & changed component placeholder max-length
• updated sticker::get_url
• Update close-master-pr.php
• updated doc

📚 Documentation

• auto generate docs for event handler objects
• hide an internal var from doxygen
• redo windows guides to basically railroad new users to using the template

💎 Style Changes

• auto spell checking of docs PRs

👷 Build/CI

• replace azure. from sources.list because azure mirror is flaky af

💣 Breaking Changes

• remove the string type parameter to confirmation_callback_t, because its possible to use std::holds_alternative for this on the value

Thank you for using D++!