Commit a7ed746093f42fd61f38a0a9ea5ef73c45f11efa

Russell Belfer 2013-02-15T15:58:13

Add rudimentary error checks and reformat comments There were a number of functions assigning their return value to `error` without much explanation. I added in some rudimentary error checking to help flesh out the example. Also, I reformatted all of the comments down to 80 cols (and in some cases, slightly updated the wording).