context: Making context loading fail more gracefully when there are invalid keys in the saved context. Also adding some helper functions to standardize constructing package-specific workspace paths.
context: Making context loading fail more gracefully when there are invalid keys in the saved context. Also adding some helper functions to standardize constructing package-specific workspace paths.

iwanders/catkin_tools,scpeters/catkin_tools,scpeters/catkin_tools,iwanders/catkin_tools,iwanders/catkin_tools,scpeters/catkin_tools,rhaschke/catkin_tools,catkin/catkin_tools,catkin/catkin_tools,catkin/catkin_tools,scpeters/catkin_tools,catkin/catkin_tools,rhaschke/catkin_tools,rhaschke/catkin_tools,iwanders/catkin_tools