initial commit of SMACH playground package
test programs for moveit/smach integration
added dependency on json_prolog
added demo semantic map and init.pl
launch file for starting knowrob with this demo map
added json_prolog queries for reading object poses
fixed namespace bug in box2, now both are found
set up proper state machine: read poses from KnowRob, send planning request to each of these positions to moveit
do not print poses