Fixed up the readme to include some goals

README.txt

@@ -0,0 +1,27 @@
+Goals of the project
+
+* Have a generic method for handling hierarchical data
+
+* Allow multiple independent trees, or just one tree
+
+* Have a widget for use in forms
+
+* In templates:
+
+	+ Show one level of a tree 
+		- All root categories
+		- Just children of a specified category
+
+	+ Show multiple levels
+		- Ancestors of category, category and all children of category
+		- Category and its children
+
+	+ An inclusion tag for common methods of formatting categories
+		- Grandparent :: Parent :: Child <-- current node
+			- Add relative links for ancestors
+		- Unordered list:
+			* Grandparent
+			    * Parent <-- current node
+			        * Child 1
+			        * Child 2
+			        * Child n