#51 Added Camerinitial implementati(untested) implementation of CameraNodee, also added weakref parent getter to GraphNode
dummied out old code
#51 adjustetweaking CameraNode and updated demos to use it
#51 fixed bug where degrees were not being converted to radians on the FOV property :(
updated camera coordinates on demo 06 to account for a bugbug getting fixed
updated camera coordinates on demo 06 to account for a bugbug getting fixed
updated fov on the demo to keep old behavior now that the radians bug was fixed
#30 - added some missing stuff to GraphNode's docstring
#30, #51 - Updated documentation for m.grm.graph.js to reflect new camera functionality