Write access to nodeCount property

Can you make “nodeCount” property have protected write access instead of private? I have to manually change it when upgrading to new version. This is a minor request but I don’t think there is an alternative when subclassing a point graph.

PointGenerator.cs : 173

New:

	/** Number of nodes in this graph */
	public int nodeCount { get; protected set; }

Old:

	/** Number of nodes in this graph */
	public int nodeCount { get; private set; }