Added getX, getY, getPos
Updated attribute naming to match Lua Code Style
Updated node object definition
Updated doc comments
Underscored pathfinder class attributes
Removed openList attribute from the finder instance
Added Grid:getBounds
Underscore Grid class attributes
Updated documentation to the latest changes
Undescored Path class attributes
Declare depandancies at the top
Updated internals
Updated .gitignore
Numeric for is faster than ipairs
Tag class attributes as lexically private
Removed global step_first
Prettified
Removed versionning context
Fixed internals calls to attributes
Fixed specs