Added the state snapshot service for saving the current costmaps with the paths overlaid
Changed the default folder for storing the images
Fixed some bugs
Removed old code
Changed the plan topics
Update package.xml
Removed pcl_ros dependency and added installed the node
Changed enum to be portable
Merge remote-tracking branch 'origin/state_snapshot' into state_snapshot
Merge pull request #33 from nilsbore/state_snapshot

[movebase_state_service] Service that returns current costmaps with plans overlaid