Make the dots move on the robot map web page: * configure, configure.in: Add robots/emc/loclistener. * event/lib/event.h, event/lib/event.c: Add some helper functions for sending events and parsing args. * event/lib/tbevent.py.tail, event/lib/tbevent.py: Add support for clients that register using keyfiles. * robots/emc/GNUmakefile.in: Install loclistener on boss. * robots/emc/emcd.h, robots/emc/emcd.c: Send update events every two seconds with the node's location. Fill out a little more of the event callback, not sure what to do with the requested destination though. Add some code to the vmc callback to store position updates. Changed the config file format to also include the vname of the robot. * robots/emc/loclistener.in: Listen for NODE MODIFY events with coordinates and update the database accordingly. Kinda sucks, but it works. * robots/emc/test_emcd.config: Add vnames to the robots to reflect change in the config file format. * tbsetup/ns2ir/node.tcl: Add nodes to the virt_agents table.