sort leakages in freq order, etc
added values from c1190.1C_230SgrA.2 on 25oct2013
search for avgchan in Lk header; plot histogram if avgchan == 0
new plotComplex routine connects dots within corr section
read avgchan from old-style leak files; color DR and DL in complex plots
add routine complex4All to plot multiple complex leaks on 1 page