Remove endNode evaluation forcing
Added removeClearance
Removed clearance evaluation, as it was too much slow
Removed drAround iterator, unused
Provide a faster algorithm for grid annotation
Renamed evalGridClearance to annotateGrid
Renamed removeClearance to clearAnnotations
Updated documentation
Updated examples
Updated docs
No longer force clearance evaluation
Marks explicitely a grid as annotated for a given walkable
Updated specs, as of upstream changes
Fixes #5
Added debug tools