Merge pull request #32 from marro10/master

OccupancyGrid Map
fix map rotation
Merge pull request #33 from tobiasandersson/master

fix map rotation
first attempt to decrease odometry drift by adding ir sensors
first revision of graph implementation with a service node. added necessary messages and serives. graph structure tested.
Merge pull request #34 from mlosch/master

first revision of graph implementation with a service node
do not wait 3sec after turning
launch file that starts EVERYTHING
do not update theta with ir sensors while turning
Merge remote-tracking branch 'upstream/master'
adjustments to package and cmakelists
Merge remote-tracking branch 'upstream/master'
fix ir theta according to general direction
add constants to msg and srv
Merge branch 'master' of https://github.com/mlosch/robot_ai
visit nodes only onces.
add graph visualizer. Node message holds now the attribute object_here
use compressed ssh connection by default when doing conx
Merge pull request #35 from mlosch/master

Graph visualization in rviz.
do not revisit nodes (correct version)