MS passive

Fiddlestick passive rework : x % Move speed bonus Heimerdinger passive rework : x % Move speed bonus Singed passive rework : x % Move speed bonus

I have the feeling those passive are hitting the same category as mana passive, and should be avoided as much as possible. In case of Singed, I'm sure it will greatly improve his playstyle, but I'll always miss the old mana/health passive. It used to be so satisfying to buy mana on this guy.