Fixed sum_prods to so average instead of sum
Fixed load_traces to use correct shape for data
Switched correlators file to use new av_prods function
Added function to create the three correlators needed in the ama
Added function to take traces and generate correlators for ama
Moved ama code into separate function as this will be needed repeatedly.
Added function to load data for one config and do the ama
Added function to do ama on all configs.
Added tests for remaining functions in the package.
Added TestCorrelators class.
Fixed some formatting.
Corrected cython function to find differences

Doesn't use abs now, uses periodic boundary conditions
Removed unnecessary declaration of correlators
Added more infor docstrings
Import run functions in etaetaprime module init file
Set up restricted correlator properly