OPEN - task #308: Log Entry Tree: display the modify/create owners 
http://github.com/ControlSystemStudio/cs-studio/issues/issue/308

Show create and modifier, will have to changed once modify owner field
is added to LogEntry
Merge pull request #289 from eschuhmacher/logbook

Add the updated Shift application
LogEntryWidget: removing the invalid Names setting.

Change-Id: If4595a1c58e953aceeb9ca3df12913ee71f695e5
OlogLogbookClient: fixing the update method to support the addition of
new attachments

Change-Id: Ib9dc4aebdcf231928621a79f5a77e53d87e15eba
create export logs function, will allow user to export to a tab delimited file the selected columns for multiple logs