Changes

* [http://www.cplusplus.com/doc/tutorial/pointers/ Everything you always wanted to know about pointers, but were afraid to ask]*: Single resource that will give you all the knowledge you need about pointers, including information given in the last two classes. WARNING! Reading online tutorials is NOT a substitute to visiting in-class lectures.*: [http://www.cplusplus.com/doc/tutorial/pointers/ Everything you always wanted to know about pointers, but were afraid to ask]