Lab2

Here are my suggested edits to lab2. After talking to the TAs and students in the class, we decided that timing things was too complicated for a beginning lab (not to mention that it isn't part of this lab's objective), so we removed those problems. The plan is to include timing in the profiling lab.
Change "$n-1$-dimensional arrays" to $(n-1)$-D arrays. This connects to the notation later under the "More Methods" section.