* qannotate:
* Fixed a bug when annotating a file in a branch with no working tree.
(Bug 419477)
* Fixed a bug were the logwidget would crash trying to render some graphs.
(Bug 417895)
* Fixed a bug were it was not possible to annotate files that have been
deleted. (Bug 419790)
* Fixed a bug where opening a per file diff would crash with a
ObjectNotLocked error in a 2a branch. (Bug 426688)
* qlog:
* Fixed a bug where it was not possible to do any file list context menu
actions on a file that was renamed in the revision that you were viewing.
(Bug 418340)
* Fixed a graph layout bug, where if the first revions of a brach was
filter, there was no non direct line to it. (Bug 417895)
* Removed superfluous twisties at the end of a filterted branch line.
(Bug 419784)
* Fixed a bug where branch lables would show on the wrong revisions.
(Bug 423201)
* qcommit:
* Show a friendly error message when tring to commit a specific file,
and there are pending merges. (Bug 417210)
* qbrowse:
* Fixed a bug where the window would crash with a ObjectNotLocked error
when expanded a folder in a 2a branch. (Bug 424258)
* Handle errors raised from _qbzr_run methods and the __init__ methods that
they call, so that ui-mode is honoured when they are reported. (Bug 420534)
