Adding copy c'tor to gridmap_2d, humanoid_planner_2d using local map copy now
humanoid_planner_2d: Add another planning method (double)
humanoid_planner_2d: Fix map inflation for planning
humanoid_planner_2d: Add getter for robot (inflation) radius
gridmap_2d: Add option to treat unknown as obstacle
get code to compile under Hydro
catkinize the stack
Merge pull request #3 from vrabaud/hydro-devel

Catkinization and fixes for Hydro
uses STL hash to avoid int traps