Just some more warnings

I guess that it is obvious, because I am on the warnings branch
ehh, warnings

I just had to fix some more signed/unsigned errors...ugh.
logreplay.c is clearly not done yet

It has a pile of unused parameters in it...I am just going to ignore
that for now. Lets see if it gets fixed without me. For now, can we
supress those warnings? They annoy me.
Some more warnings, just for good luck

These aren't even serious. Just check the code if you really want to
find out. I seriously doubt anyone is going to read these.