Ok - after talking with a few people, my civic is back on the street! A couple guys told me that after replacing the clutch master cylinder that you either have to bench bleed the new master cylinder or use a vacuum bleeder after it is installed. Since it was already installed and I didn't want to remove it, I spent the $40 for a vacuum bleeder and after just a few pumps on that thing, my pedal came back! Apparently air gets lodged in the master cylinder and won't come out with typical bleeding - at least it didn't in my case. That pump was a life saver! Thanks everyone for the replies! Hopefully this can help someone else out too.