fix(ordermatch): ignore loop-back; clear on null root; reject stale keep-alives#2580

shamardy merged 5 commits intodevGLEECBTC/komodo-defi-framework:devfrom

fix/ignore-self-keep-aliveGLEECBTC/komodo-defi-framework:fix/ignore-self-keep-aliveCopy head branch name to clipboard