The S&P (INDEXSP:.INX) went back into digestion mode Friday after yesterday's push higher out of the mini upper level 2013 base. For intraday traders the action has been a bit lethargic but for swing traders and investors this is very healthy action. You don't like to see a market go too far too fast but rather you like to see stocks and indices put in upper level bases after extensions.   Wells Fargo (NYSE:WFC) kicked off earnings for the banks this morning with a decent report. The company beat on EPS by $.02 but its net interest margins fell ...