You're probably fine. I believe they send the kits with the right amount of priming sugar (I did a Brewer's Best a while back, and I'm pretty sure it was). Your FG looks fine, and was probably stable. In the future, when you believe it is done fermenting, take a reading, and then wait a few days and take another. If your FG is in the range you expect and doesn't change between the two readings, you're good to prime and bottle.
Like sweetcell said, bottle bombs are usually the result of bottling before fermentation completes, over-priming, or infection.