As of this afternoon i can't login anymore other then deleting everything and play the browser option on minecraft.net.
The only thing i added this morning was a option for the f3-function to see if your in a slime spawnpoint or not, i removed this file from the jar-file, but i still can't log in the normal way. Any1 knows how to fix this?

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"Even when struck down, I will again rise.
I will not be defeated, nor will I demise.
I will strike my foes with a vengeance so hard,
they will be the ones left scarred."

Delete the .jar file, it'll download a clean one.

If that won't work use the client and click force update.

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[SpA]Saint K.: I need some help trying to reproduce a crash
[SpA]Saint K.: would u mind joining me ?

MC.net is down

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"Fire rained from the sky on the day I was born: 10,000 lives I ended before drawing first breath. Do not speak to me of guilt or regret, Jonathan.” - Brayan, The Keepers of the Fire