Worked some on lab6

The forward iterator works fine. Reverse iterators is not working due to *(pointer+2) needs to be *(pointer-2) and ++pointer and pointer++ needs to be --pointer and pointer--. Not sure how to change how overload pointers. That if, if pointer is set at rbegin and rbegin is the last char.
Lab6 kinda working

Have made temporary methods that instead of + uses -
Lab 6 is working

Also removed relops from both lab5.
Merge branch 'mattias3'