Issue 90: Workspace revision on top of the revision history

Reported by Thomas Keller, Oct 7, 2010

The history view shows currently all existing revisions in which a 
file changed and allows to compare two revisions.

Also, for every changed file there is a context menu to show the 
differences between the last revision and the workspace.

However, it is not possible to compare the workspace revision with a 
former revision other than the base revision of a workspace.

Comment 1 by Thomas Keller, Oct 7, 2010

Note to self: implement a right-click menu on a revision entry with 
“Select as left revision”, “Select as right revision”, “Show 
differences against the workspace revisision” (needs some trickery 
since this dialog is actually a database-only one) and “Show all 
files of this revision”.

guitone

Issue 90: Workspace revision on top of the revision history