structured the floors to aid visibility changes
Some objects in common room.
Merge branch 'lars-devel'
added scham implementation of patrolling behaviour for fixed points and simulated battery discharge and charge
Merge remote-tracking branch 'origin/master'
Added script for generating random positions of objects and placing them on
planar objects (eg tables)
model updates
fix UG floor
single floor models
Merge branch 'devel-chris'

Conflicts:
	strands_morse_2dnav/nav.launch
added failure transition to the CHARGE_BATTERY state in smach_nav.py and added possibility to start the MORSE simulation only on the lower ground floor of tge UB CS building
fix elevator bug / laser issues
Merge branch 'devel-chris'
splitting robot state publisher from navigation stack
floor 1 map
changed position of the battery