implementing the add function
done implementing add

finished implementing the add method now i just need to test it and then
i will do another method!
fixed the iterator and worked on add and get

added code to the iterator so that it would skip over the empty spaces
in the hash table and worked on get a little bit
debugging add and get

changed term so that terms can be added with different cases (not all
lower case). finished add and most of get. I have a question about the
boolean parameter though...