Merge branch 'stable-2.5'
* stable-2.5:
Describe submit filter in the prolog-cookbook.
Write a Cookbook for Prolog submit rules
Fix message if pushing tag is rejected because tagger is somebody else
Make commands to download patch sets configurable
Show dependency list when change is needed by a draft change
Create a draft patch set when a draft patch set is rebased
Allow users of ChangeTable to control styling of change rows
Fix displaying of file diff if draft patch has been deleted
set-account command: Do not close ReviewDb that was injected
Update HTTP password from SSH commands.
