add: yb_ignore_objectives, that makes bots to ignore map target (hostage rescue, bomb plant/defuse) (fixes#237)
fix: possible buffer overrun in message functions
build: cleanup package.py
fix: crash when loading on windows xp (#244)
build: switched to github hosted runners, and get rid of self-hosted
build: windows exe and dll is now code-signed
build: drop support for intel icc compiler
Switch build to clang for linux.
Mingw binaries isn't working with vanilla hlds / listenserver. And i'm too lazy to debug them.
For consistency reason, linux switched clang, so we're only have clang for linux & osx and msvc for windows.