..logbook: exception handling, default logbook

Change-Id: I1874ac4fe0f151745be696cc1bfd3e4ddd9c1b08
Signed-off-by: Kunal Shroff <shroffk@bnl.gov>
..ui: setting text adding the missing double_buffering

Change-Id: I97c521c9b561ca157c1d0d4b4e397e1bb7dcc7b8
Signed-off-by: Kunal Shroff <shroffk@bnl.gov>