GUAC-744: Generate and store connection ID within guac_client.
GUAC-744: Send ready instruction after guac_client_init.
GUAC-744: Send ready instruction BEFORE guac_client_init. Sending after is just crazy.
GUAC-757: Also search for OSSP UUID as libuuid.
Merge branch 'master' of https://github.com/glyptodon/guacamole-server