Add logging to pgcompleter.
Add logging to pgcompleter.

lk1ngaa7/pgcli,w4ngyi/pgcli,stuartquin/pgcli,zhiyuanshi/pgcli,darikg/pgcli,darikg/pgcli,MattOates/pgcli,thedrow/pgcli,janusnic/pgcli,suzukaze/pgcli,n-someya/pgcli,MattOates/pgcli,TamasNo1/pgcli,dbcli/vcli,koljonen/pgcli,dbcli/vcli,j-bennet/pgcli,TamasNo1/pgcli,d33tah/pgcli,n-someya/pgcli,lk1ngaa7/pgcli,yx91490/pgcli,zhiyuanshi/pgcli,nosun/pgcli,johshoff/pgcli,w4ngyi/pgcli,janusnic/pgcli,dbcli/pgcli,thedrow/pgcli,bitemyapp/pgcli,bitmonk/pgcli,j-bennet/pgcli,bitemyapp/pgcli,suzukaze/pgcli,bitmonk/pgcli,yx91490/pgcli,joewalnes/pgcli,koljonen/pgcli,joewalnes/pgcli,johshoff/pgcli,d33tah/pgcli,dbcli/pgcli,nosun/pgcli