-----------------------------------------------------------------
* Exclude own changes in the todo lists
* Add CSV as an output format for some reports
* Add patchreviewrate report for seeing historica approvals per day
* Replace 'Approvals' column with 'Test', 'Review' and 'Workflow' columns
in change reports
* Allow todo lists to be filtered per branch
* Reorder sorting of votes to prioritize +2/-2s over +1/-1s
* Avoid exception from unexpected approval vote types
* Avoid creating empty cache file when Ctrl-C'ing ssh client
* Run ssh in batch mode to avoid hang when host key is unknown