Mitchell Owen, Sebastian Pancrantz
Submitted patch for Artin-Hasse exponential. needs: doctests that verify that it is the AHE; would be nice to have an argument (m?) that gives you exp(x+...+x(pm)/p^m)
Got a copy of some sage code for the p-adic gamma function from Cameron Franc. Optimizing.
If there are other functions you'd like to see added please list them.