fix some documentation intricacies
Plugin Information
Update Map Method
Clean up package.xmls (from hydro branch)
Minor spacing issues cleaned up (from Hydro)
Minor spacing issues cleaned up (from Hydro)
Clean up spacing and track odom
Clean up spacing and track odom in DWA (from Hydro)
YAML Fix (from Hydro)
Add cheat factor to DWA Planner
Remove mainpage.dox
Add mutex for #137
Merge branch 'groovy_dev' into dwa_knockout

Conflicts:
	dwa_local_planner/src/dwa_planner.cpp
Simplified knockouts