Fixes syntax errors

Removes some left over -->'s which cause syntax errors
Merge pull request #3 from phyrog/patch-1

Fixes syntax errors in allInOne.urdf.xml
Added pancake table into the kitchen URDF
minor
removed dependency on ias_semantic_map in order to avoid to maps to be loaded all the time
added semantic_map_utils package from ias_semantic_map in order to avoid this dependency
removed dependency on ias_semantic_map from manifest
Added additional map files and updated global ground map
Added missing files