[libvirt] [PATCH 00/21] Rewrite the QEMU monitor handling

This patch series rewrites the QEMU monitor handling almost completely. The key theme here is to move from a totally synchronous way of interacting with the monitor, to a totally asynchronous way. This allows us to handle receipt & dispatch of asychronous events from QEMU. For example a notification of a disk-full error, or VM state change. In the process of doing this re-factoring I have also dropped in basic support/infrastructure for the JSON based monitor. The basic JSON parsing/formatting is working, but this needs to wait until QEMU community finalize their monitor syntax for the new commands & what args they accept. Daniel