0.12.5

Changes since 0.12.4

• Implemented a co-op mechanism for main thread message processing, reducing network I/O latency when under high load.
• Removed {} string offset access usages (deprecated in PHP 7.4)
• ext-pthreads 3.2.0 is now required at minimum.
• RakLib crashed! log message has been replaced with more useful error messages.