http://justacarguy.blogspot.ca/2014/10/customer-complains-that-brake-pedal.html Rotors look good. Fluid must be a little low.
Just noticed, as of your last response, you're exactly 1000 posts ahead of my 2188. Of course, by posting this, I'm ruining that but cool anyway :2_thumbs_up_-_anima (I'm having a slow day at work, eh!)
A friend borrowed my wife's '98 Volvo V70 for a few weeks while her husband's truck was getting an engine rebuild. She started complaining that the brakes were squishy; then that it was leaking brake fluid. I pulled off the left rear wheel and noticed both pads were missing from the caliper. Then I saw this:
Mmm...try stopping a '77 Cordoba with those finned rotors, especially when one snaps the rotor surface clean off the hub.....