Wait. You did what? Maybe I'm not understanding. Did you close the bleeders again?
If you didn't, that's where the puddles came from. You gravity bled your system. Too bad you probably emptied the master cylinder.
And on another note, you didn't add any pressure to anything when you hooked up the new brake springs. Any fluid displaced (if any at all) when you install the springs goes back to the master cylinder. Even if the master cylinder is completely full, that fluid will just leak out at the master- the seal on the master cylinder lid is not designed to hold pressure. Same thing happens when you step on the brakes and release them, the springs pull the brakes back and the brake fluid that was holding them out returns to the master.
