FINAL FINAL FINAL update to GroupWAVBsearch.py

//
I added -1 to my len() function, but I realized that it causes a bug because it does not include the final item in the list due to the conditions of my while loop. since I set the while loop to firstName < lastName and not firstName = lastName, the -1 to len() ellipses the final item in the list

// I removed the -1 from Eboni's code  also since she also used greater / less than rather than equals --- not too sure about the + 1's following her lo and hi in 52 and 54