I just posted a  on my user page.  It restores the Mercator power series for log(1+z), and mentions the Gronwall paper discovered by Dmcq.  And it makes the intro more chatty (while being careful to remain honest).
By the way, I was thinking that in the Principal Value section, we could possibly remove the first sentence and the next paragraph.    Do you think this would make it easier or harder to read?  I'm not sure, so your advice would be helpful.