OPEN - task #201: logbook history support 
http://github.com/ControlSystemStudio/cs-studio/issues/issue/201

Adding update log entry command
OPEN - task #201: logbook history support 
http://github.com/ControlSystemStudio/cs-studio/issues/issue/201

Fixing the order of the log entries
Adding current authorization variable 

Change-Id: I07920ca435da7accfdd3fd0d10bfcd7fde33ddb0
OPEN - task #201: logbook history support 
http://github.com/ControlSystemStudio/cs-studio/issues/issue/201

Adding review and signature
OPEN - task #201: logbook history support 
http://github.com/ControlSystemStudio/cs-studio/issues/issue/201

Fix the authentication in the review sign action
OPEN - task #201: logbook history support 
http://github.com/ControlSystemStudio/cs-studio/issues/issue/201

Add create log entry button to tree view, collapse tags and logbooks by
default

Change-Id: I479ec1ef236cb190b7329e42ab165c8f63346a00
OPEN - task #201: logbook history support 
http://github.com/ControlSystemStudio/cs-studio/issues/issue/201

Update the tree to display all previous entries/edits as children of the
same log

Change-Id: If6c228b644be7de5f83d5a1e442d05467b1a680a
OPEN - task #201: logbook history support 
http://github.com/ControlSystemStudio/cs-studio/issues/issue/201

Adding expanded and compact mode

Change-Id: I5c7ff82475848cdac4662147de2384459a8d314c