[Cocoapsql-developer] more on the commit

[Olaf v. O. <ol...@ad...>]

modified autosizeing of last column in PSQLTableViewCat; added 
"readline" behaviour; replaced and resized queryHistory TextVieuw to 
show scrollbar; modified lines adding queries to the queryHistory view 
ensuring they are added to the end of the history
and..
made sure that, if in there is an RETURN character the querySpace 
TextView the query will bet the paragraph, containing the insertion 
point, up to the RETURN character