Merge branch 'kriley' into 'master'

Update the IGraph Interface documentation.

See merge request !1

src/edu/caltech/cs2/interfaces/IGraph.java

@@ -14,7 +14,7 @@ public abstract class IGraph<V, E> {
      * @param e The edge to add.
      * @throws IllegalArgumentException
      *             If e is not a valid edge (eg. refers to vertices not in the graph).
-     * @return true If e was not already present; false if it was (in which case the graph is not updated).
+     * @return true If e was not already present; false if it was (in which case the graph is still updated).
      */
     public abstract boolean addEdge(V src, V dest, E e);
 
@@ -24,7 +24,7 @@ public abstract class IGraph<V, E> {
      * @param e The edge to add.
      * @throws IllegalArgumentException
      *    If e is not a valid edge (eg. refers to vertices not in the graph).
-     * @return true If e was not already present in either direction; false if it was (in which case the graph is not updated).
+     * @return true If e was not already present in either direction; false if it was (in which case the graph is still updated).
      */
     public abstract boolean addUndirectedEdge(V src, V dest, E e);